;;; -*- Mode: TDL; Package: LKB -*-
;;;
;;; HPSG Grammar Matrix
;;;
;;; $Id: matrix.tdl,v 1.51 2008-05-23 01:44:21 sfd Exp $
;;;
;;;  Copyright (c) 2002-2005
;;;    Emily M. Bender, Dan Flickinger, Stephan Oepen
;;;    see licence.txt for conditions
;;;
;;;  Projects using the Grammar Matrix should reference
;;;  http://www.delph-in.net/matrix, the version used
;;;  and Bender, Flickiner, & Oepen 2002.
;;;
;;;  Based on:
;;;
;;;  LinGO Grammar: fundamentals.tdl 
;;;  Copyright Daniel Flickinger 1994-2001
;;;  Initial development Rob Malouf, 3-Nov-1994
;;;
;;;  JACY Grammar: fundamentals.tdl, mrsbasic.tdl
;;;  Developed by Melanie Siegel, Emily M. Bender

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 
;;
;;  Top-level feature geometry
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Types for Sign, Word, Phrase, and Lex-Entry

sign-min := avm &
  [ STEM list ].

basic-sign := sign-min &
  [ KEY-ARG bool ].

sign := basic-sign &
  [ SYNSEM synsem,
    ARGS list,
    INFLECTED bool ].

; C-CONT encodes the semantic contribution of the rule (phrasal
; or lexical).

phrase-or-lexrule := sign &
  [ SYNSEM canonical-synsem & 
	   [ LOCAL.CONT.HOOK #hook],
    C-CONT mrs-min & [ HOOK #hook] ].

word-or-lexrule-min := sign-min.

; ALTS allow lexical entries to block lexical rule application
; ARG-ST is the argument structure list.  It appears only on
; lexical items (words or lexical rules), not on phrases.

word-or-lexrule := word-or-lexrule-min & sign &
  [ ALTS alts-min,
    ARG-ST list ].

nocoord := sign &
  [ SYNSEM.LOCAL.COORD - ].

alts-min := avm.
alts := alts-min &
  [ PASSIVE bool ].
no-alts := alts-min.

; Not all words have lex-synsem - e.g. lexical PPs like "tomorrow" are
; phr-synsem since they can be post-nominal modifiers.

word := word-or-lexrule & nocoord.

lex-item := word-or-lexrule & nocoord.

;; Not all phrases have SYNSEM phr-synsem, since we need to allow the
;; head-comp rules to build signs which are still [ SYNSEM lex-synsem
;; ], for constructions like "twenty-two" and "five fifteen p.m.".  So
;; most phrases will assign the type phr-synsem to the value of
;; SYNSEM, but not all.

phrase := phrase-or-lexrule.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Affixation
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

non-affix-bearing := word-or-lexrule &
  [ INFLECTED +,
    SYNSEM.LKEYS.KEYREL.WLINK cons ].

; Rule

rule := sign &
  [ RULE-NAME string ].

; LABEL-NAME and META used for labeling nodes in parse trees

tree-node-label := *top* &
  [ NODE sign ].

label := sign &
  [ LABEL-NAME string ].

; For complex node labels, like S/NP
meta := sign &
  [ META-PREFIX string,
    META-SUFFIX string ]. 

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; SYNSEM values

; ERB 2004-05-10 DEF-OPT and OPT are used in the analysis of
; optional complements (null instantiation).  DEF-OPT allows words
; to lexically specify how their arguments will be interpreted
; in case of null instantiation.  This solution may be superceded
; by a Sem-I based alternative.

; ERB 2007-02-05 Moving to an analysis of discourse status/cognitive
; status of referents following Borthen & Haugereid 2005.  Replacing
; DEF and DEF-OPT with COG-ST and OPT-CS.

synsem-min := avm &
  [ OPT bool,
    OPT-CS cog-st,
    LOCAL mod-local,
    NON-LOCAL non-local-min ].

; The feature LIGHT is used to model phenomena which distinguish
; shorter words from longer ones, or constituents which are lexical
; or nearly so from larger phrases.  It is inspired by the work 
; of Abeille and Godard (e.g., 2003).

lex-or-phrase-synsem := synsem-min &
  [ LIGHT luk ].

synsem := synsem-min.

expressed-synsem := synsem.

canonical-synsem := expressed-synsem &
  [ MODIFIED xmod ].

lex-synsem := canonical-synsem & lex-or-phrase-synsem &
  [ LOCAL local-min,
    LIGHT +,
    LKEYS lexkeys ].

; ERB (2005-08-10) We want to make sure that head-comp phrases
; don't have the feature LKEYS, even if they are LIGHT +.

phr-synsem-min := canonical-synsem & lex-or-phrase-synsem &
  [ LOCAL local-min ].

phr-synsem := phr-synsem-min &
  [ LIGHT - ].

non-canonical := synsem &
  [ LOCAL.CONT.HOOK.INDEX event-or-ref-index ].

expressed-non-canonical := non-canonical & expressed-synsem.

gap := expressed-non-canonical &
  [ LOCAL #local,
    NON-LOCAL [ REL 0-dlist,
		QUE 0-dlist,
		SLASH 1-dlist &
		    [ LIST < #local > ] ] ].

unexpressed := synsem-min &
  [ NON-LOCAL [ SLASH 0-dlist,
		REL 0-dlist,
		QUE 0-dlist ] ].

unexpressed-reg := unexpressed & non-canonical.

anti-synsem := unexpressed &
"A contrasting type to ordinary synsems (expressed
and unexpressed) which is sometimes useful.  No longer
explicitly used in the Matrix.".

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; LOCAL & NON-LOCAL values

mod-local := avm.

; sfd 08/02/2005: Added COORD and COORD-REL for coordination.  COORD
; is a bool that's used to enforce the syntax of coordination.
; COORD-REL is the coordination relation.

local-min := mod-local &
  [ CAT cat-min,
    CONT mrs-min,
    AGR individual,
    COORD bool,
    COORD-REL coordination-relation,
    COORD-STRAT string ].

local := local-min &
  [ CTXT ctxt-min ].

; Types for distinguishing scopal v. intersective modifiers.
; (These types are used in the MOD value of modifiers, and 
; referenced by the scopal/intersective head-adjunct rules.)

scopal-mod := local.
intersective-mod := local.

non-local-min := avm.

non-local := non-local-min &
  [ SLASH 0-1-dlist,
    QUE 0-1-dlist,
    REL 0-1-dlist ].

non-local-none := non-local &
  [ SLASH 0-dlist & [ LIST < > ],
    QUE 0-dlist,
    REL 0-dlist ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  CAT values

cat-min := avm.

; ERB 2004-05-05 Following ERG, add a feature HC-LIGHT which indicates
; whether a head-comp phrase projected from a head is treated as light
; or heavy.  That is, whether or not a phrase consisting of heads and
; complements is light or heavy is taken to be a lexical property of
; the head.

; MC stands for 'Main clause', and is used to distinguish phenomena
; which can only occur in main (+) or subordinate clauses (-).  The
; value of MC is luk, allowing for a third possibility of na, for
; not applicable.

cat := cat-min &
  [ HEAD head-min,
    VAL valence-min,
    MC luk,
    HC-LIGHT luk,
    POSTHEAD bool ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  HEAD 

head-min := avm.

; It is expected that head will have many more features, but it
; is not yet clear which are relevant crosslinguistically.  In
; the English grammar, HEAD features include CASE, PRD, AUX, INV,
; TAM, and VFORM.  (Re: TAM --- it is sometimes useful to have the
; semantic information encoded in EVENT.E accessible via the head
; path.)

head := head-min &
  [ MOD list,
    KEYS keys_min ].

; (ERB 2004-08-19) We had previously shied away from defining head
; types because even head types that are expected to occur across
; all languages are probably grouped differently in the head subhierarchy
; for different languages.  There are plenty of things which we
; think will be the same across languages, however.  Thus the current
; strategy is to allow for all possible groupings of head types,
; and expect most of the disjunctive types to be ignored in most
; languages.  Perhaps one day the LKB will be modified so that 
; users can declare certain types to suppress in the hierarchy
; displays.

; One recent LKB addition which will be helpful here is the
; type addendum statements (':+').  Head types often bear
; features, but none are declared for any of these Matrix head
; types, since we don't yet know of any universal ones.  With
; the new ':+' notation, you can add constraints (including feature
; declarations) to existing types.  We encourage you to use this
; when adding information to Matrix types, but not to types defined
; solely within your grammar.  For example:

; CASE on nouns:

; noun :+ 
; [ CASE case ]. 

; VFORM on verbs and complementizers

; +vc :+
; [ FORM form].

; We expect that particular grammars will need to add new head
; types, and may find that the new types should inherit from
; existing disjunctions.  If you do this, we encourage you to 
; make use of type addendum statements (':+') to add a comment
; to the existing disjunction, e.g.:

; co-verb := +jv.
; +jv :+
; "Adjectives, verbs, and co-verbs.".

; Anticipated future developments include Lisp commands for
; generating the appropriate type addenda and/or additional
; types when you want to add a new head type.

; Our basic inventory of head types will consist of 
; verb (v), noun (n), adjective (j), adverb (r), adposition (p), 
; complementizer (c), determiner (d), number-name (m), 
; and conjunction (o). The letters in parentheses indicate
; the abbreviation for each part of speech used in the disjunctive
; types.  Each disjunctive type is also associated with
; a documentation string explaining the disjuncts.  

; With all the disjuntive types, we need 510 types to encode this.
; The parent types are in a separate file called head-types.tdl, with
; just the leaves here.

conj := +mo & +do & +co & +po & +ro & +jo & +vo & +no.
num := +mo & +dm & +cm & +pm & +rm & +jm & +vm & +nm.
det := +do & +dm & +cd & +pd & +rd & +jd & +vd & +nd.
comp := +co & +cm & +cd & +pc & +rc & +jc & +vc & +nc.
adp := +po & +pm & +pd & +pc & +rp & +jp & +vp & +np.
adv := +ro & +rm & +rd & +rc & +rp & +jr & +vr & +nr.
adj := +jo & +jm & +jd & +jc & +jp & +jr & +vj & +nj.
verb := +vo & +vm & +vd & +vc & +vp & +vr & +vj & +nv.
noun := +no & +nm & +nd & +nc & +np & +nr & +nj & +nv.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; VAL 


valence-min := avm.

valence := valence-min &
  [ SUBJ list,
    SPR list,
    COMPS list,
    SPEC list,
    --KEYCOMP avm ].

keys_min := avm.
keys := keys_min &
  [ KEY predsort,
    ALTKEY predsort ].

; One of a grammatically salient inventory of semantic sorts, such as
; 'animate' or 'time'

semsort :< sort.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; CONT values
;
;   HOOK                   : Externally visible attributes of a sign
;   RELS diff-list         ; List of semantic relations
;   HCONS diff-list        ; Scope constraints: list of qeq's

mrs-min := avm.

; ERB 2007-01-21 Removing feature MSG here (moving it to a feature--SF---
; of events).

mrs := mrs-min &
  [ HOOK hook,
    RELS diff-list,
    HCONS diff-list ].

; HOOK values include
;    LTOP                  ; Local top handle
;    INDEX                 ; The salient nominal instance or event
;    XARG                  ; The external (controlled) argument of a phrase

hook := avm &
  [ LTOP handle,
    INDEX individual,
    XARG individual ].

; MRSs are divided into psoas (with a distinguished event) and
; nom-objs (with a distinguished index).  We use a polymorphic
; attribute name INDEX for both of these, to simplify manipulation of
; these objects; for example, modifying PPs assign as their ARG's
; value the INDEX of the phrase they modify, whether it's an N-bar
; (with a ref-ind value) or a VP (with an event value).  Similarly
; useful for coordination.

psoa := mrs &
  [ HOOK.INDEX event ].

nom-obj := mrs &
  [ HOOK.INDEX index ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; LKEYS attributes, providing pointers to semantic relations and complement
; predsorts in lexical types:
;  KEYREL relation         ; Pointer to main relation in RELS
;  ALTKEYREL relation      ; Pointer to an alternate relation in RELS
;  --COMPKEY predsort      ; Pointer to the first complement's KEY predsort
;  --OCOMPKEY predsort     ; Pointer to the oblique complement's KEY predsort

lexkeys := avm &
  [ KEYREL relation,
    ALTKEYREL relation,
    --COMPKEY predsort,
    --OCOMPKEY predsort ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  CTXT values 

ctxt-min := avm.

ctxt := ctxt-min &
  [ ACTIVATED bool,
    PRESUP diff-list ].


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Basic semantic types

; The message represents the semantic type of a clause (cf. Ginzburg &
; Sag 2000).  All clauses have messages.  Elements that take clauses
; as semantic arguments should end up with the LBL of the clause as
; the value of ARGn, L/R-HNDL, etc.  The MARG (message argument) of a 
; message is a handle that qeqs the LBL of the main verb in the clause.
; This leaves room for quantifiers to scope at each clause without
; allowing scope ambiguity between quanitifers and messages, as it is
; not clear what that would mean.

; ERB 2007-01-21 Moving to a message free universe.

;basic_message := relation.
;message := basic_message &
;  [ PRED message_m_rel,
;    MARG handle ].

;no-msg := basic_message.



;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Message preds

; ERB 2007-01-21 Moving to a message free universe.

;message_m_rel := predsort.
;command_m_rel := message_m_rel.
;prop-or-ques_m_rel := message_m_rel.          ;for COMPS of e.g. 'know'
;proposition_m_rel := prop-or-ques_m_rel.
;abstr-ques_m_rel := prop-or-ques_m_rel.       
;question_m_rel := abstr-ques_m_rel.



; Subtype of int_rel for tag questions and structures in other languages
; with equivalent pragmatics.
;ne_m_rel := abstr-ques_m_rel.                 

; Constrains handle of scopable argument HARG relative to one 
; outscoped LARG handle (the "H" is mnemonic for either "higher" or
; "hole" argument, while the "L" is mnemonic for either "lower" or 
; "label" argument.

qeq := avm &
  [ HARG handle,
    LARG handle ].        

semarg := avm &
"INSTLOC is used by generator to index input.  Changed from
value instloc to value string in July 2004.  The grammar
should never need to make reference to it beyond this."
  [ INSTLOC string ].

handle := semarg.
individual := semarg &
  [ SORT semsort ].

; The INDEX value of a nom-obj is an index (expletive or
; referential).
; ERB 2004-05-10 Add a feature DEF which encodes definiteness
; for (in)definite null instantiation, and possibly other uses.
; The null instantiation use might get superceded by a Sem-I based
; solution.

; ERB 2007-02-05 Moving to an analysis of discourse status/cognitive
; status of referents following Borthen & Haugereid 2005.  Replacing
; DEF and DEF-OPT with COG-ST and OPT-CS.

; ERB 2007-05-16 Can't put SPECI inside COG-ST, or the generator won't
; pay attention to the value of COG-ST.  So, making it parallel.

index := individual &
	 [ COG-ST cog-st,
	   SPECI bool ].

; ERB 2007-02-05 Hierarchy from Borthen and Haugereid of possible
; COG-ST values.  Departing from B&H analysis by putting SPECI on
; this type (as well as by making COG-ST a feature of indicies rather
; than parallel to the indices in the next level up).

cog-st := avm.

activ-or-less := cog-st.
uniq-or-more := cog-st.
uniq+fam+act := activ-or-less & uniq-or-more.
fam-or-less := activ-or-less.
fam-or-more := uniq-or-more.
activ+fam := uniq+fam+act & fam-or-more.
uniq+fam := uniq+fam+act & fam-or-less.
uniq-or-less := fam-or-less.
activ-or-more := fam-or-more.
type-id := uniq-or-less.
uniq-id := uniq-or-less & uniq+fam.
familiar := uniq+fam & activ+fam.
activated := activ+fam & activ-or-more.
in-foc := activ-or-more.



; This is the type of the index of the phrase modified by predicative
; PPs, which can either modify a ref-ind nominal or an event VP.

event-or-ref-index := individual.

; Expletives get distinguished index type so they can be
; selected semantically.  In English, this type has subtypes
; for it and there.  Most languages have at most one expletive,
; so those aren't included here.

expl-ind := index.
ref-ind := index & event-or-ref-index &
  [ PNG png ].

; Types encoding agreement information, analyzed as a part of the
; index, following Pollard & Sag 1994.  Which subtypes and features
; are appropriate seems highly language dependent.  The agreement
; system of English doesn't justify a full cross-classification of
; number and gender, so the features of png are PN and GENDER in the
; English grammar.  (See Flickinger 2000.) Sag & Wasow 1999 declare
; GENDER as a feature of the png type 3sg.

png := avm.

; Create subtypes of tense, aspect and mood as appropriate.

tense := sort.
aspect := sort.
mood := sort.

tam := avm &
  [ TENSE tense,
    ASPECT aspect,
    MOOD mood ]. 

; ERB 2006-10-05 First pass at de-messaging.  I'm going to leave
; the messages in for now, but add a feature MESG to events.  Will
; have to update once I see what Dan has actually done with the ERG.

; ERB 2006-10-05 Update this little hierarchy enventually to 
; include commands, etc.

; ERB 2007-01-21 Consider renaming the feature MSG to something more
; reminiscent of illocutionary force?

; ERB 2007-01-22 MSG renamed SF.

iforce := avm.
prop-or-ques := iforce.
prop := prop-or-ques.
ques := prop-or-ques.
comm := iforce.

event := event-or-ref-index &
  [ E tam,
    SF iforce ].

; Coordinated phrases have coordinated indices as their INDEX
; values.  These are meant to be interpreted as pointers to 
; the set of coordinated indices.

coord-index := event-or-ref-index.
coord-event := coord-index & event.
coord-ref-ind := coord-index & ref-ind.


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Basic relation types

; Relations are classified according to the types of arguments they take.  All
; relations have a handle.  In addition, quantifier relations have a bound
; variable and a restriction, nominal relations have an instance, and event
; relations have an event.  Furthermore, nominal relations and event relations
; can have additional roles, depending on their meaning.

; WLINK links semantic relation to input string elements, more or less.
; This becomes useful whenever a grammar is used in some application.

relation := avm &
  [ LBL handle,
    WLINK list,
    PRED predsort ].

; Abstract relation subtypes.  We recommend not positing a type
; for each lexical relation, but rather using the feature PRED
; to distinguish different lexical relations of the same type.
; Relation types are modified in one of two circumstances:
;
; (i) A feature needs to be introduced that is relevant for some
; relations and not others, or
;
; (ii) Something in the grammar needs to make reference to a family
; of relations that are not otherwise distinguished by a type.

arg0-relation := relation &
  [ ARG0 individual ].

arg1-relation := arg0-relation &
  [ ARG1 semarg ].

arg12-relation := arg1-relation &
  [ ARG2 semarg ].

arg123-relation := arg12-relation &
  [ ARG3 semarg ].

arg1234-relation := arg123-relation &
  [ ARG4 semarg ].

event-relation := arg0-relation &
  [ ARG0 event ].

arg1-ev-relation := arg1-relation & event-relation.
arg12-ev-relation := arg1-ev-relation & arg12-relation.
arg123-ev-relation := arg12-ev-relation & arg123-relation.
arg1234-ev-relation := arg123-ev-relation & arg1234-relation.

; Noun relations

noun-relation := arg0-relation &
  [ ARG0 ref-ind ].

; Relational nouns like 'picture' or 'claim' take an additional semantic 
; argument
noun-arg1-relation := noun-relation & arg1-relation.

; 02-12-2009 gcs extracted carg-relation from named-relation
carg-relation := relation & [ CARG string ].

named-relation := noun-relation & carg-relation & [ PRED named_rel ].

; coordinating and subordinating conjunctions

subord-or-coord-relation := relation &
  [ L-HNDL handle,
    R-HNDL handle ].

coordination-relation := subord-or-coord-relation &
  [ C-ARG coord-index,
    L-INDEX individual,
    R-INDEX individual ].

; NB: "if_then_rel" is now a PRED value of subord-relation.
subord-relation := subord-or-coord-relation.

; quantifier relation

quant-relation := arg0-relation &
  [ ARG0 ref-ind,
    RSTR handle,
    BODY handle ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; predsorts

norm_rel := predsort.
named_rel := norm_rel.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Head types

; Values for head features such as CASE, VFORM, ...

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  Sorts for atomic values

; person, number and gender

; clause mode

; voice

; mood

; pronoun type

; Three-valued sort evoking Polish logician Jan Lukasiewicz

luk := sort.

; These types allow the statement of constraints (e.g., in 
; subcategorization) of the form:  If you care, you must have
; the value + (-), but you don't have to care.  Useful for keeping
; down the number of constructions and subcategorization types.

na-or-+ := luk.
na-or-- := luk.
+-or-- := luk.

na := na-or-+ & na-or--.
bool := luk.
+ := bool & na-or-+ & +-or--.
- := bool & na-or-- & +-or--.

; Three-valued sort for distinguishing unmodified signs from both
; left-modified and right-modified signs PERIPH indicates whether this
; modifier is left- or right-peripheral in its phrase - e.g., "the IBM
; temporary employees" but "*the IBM five employees"

xmod := sort &
  [ PERIPH luk ].
notmod-or-rmod := xmod.
notmod-or-lmod := xmod.
notmod := notmod-or-rmod & notmod-or-lmod.

hasmod := xmod.
lmod := hasmod & notmod-or-lmod.
rmod := hasmod & notmod-or-rmod.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;  Basic types

sort := *top*.
predsort := sort.
atom := predsort.
no-pred := predsort.
avm := *top*.
list := avm.

cons := list &
  [ FIRST *top*,
    REST *top* ].

0-1-list := list.
1-list := 0-1-list & cons &
  [ REST null ].
null := 0-1-list.
1-plus-list := cons &
  [ REST cons ].

diff-list := avm &
  [ LIST list,
    LAST list ].

0-1-dlist := diff-list &
  [ LIST 0-1-list ].
0-dlist := 0-1-dlist &
  [ LIST #list,
    LAST #list ].

; ADD DOC -- don't use for lists which are constructive.
; might be good now -- circular structure check?
; dpf will look into it. -- remove null?

1-dlist := 0-1-dlist &
  [ LIST 1-list &
	 [ REST #rest ],
    LAST #rest ].


; This type shows the basic form for diff-list appends.
; It is not meant to be used as a supertype.  Actual instances
; of diff-list append will involve different features in different
; relationships to each other & the feature geometry.

dl-append := avm & [APPARG1 [LIST #first,       
                             LAST #between],
                    APPARG2 [LIST #between,
                             LAST #last],
                    RESULT  [LIST #first,
                             LAST #last]].

integer := atom.

; NB: strings should be enclosed in double quotes, e.g., [PRED "named_rel"].

string := atom.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Some useful kinds of lists

; A list of optional arguments.

olist := list.

ocons := olist & cons &
  [ FIRST unexpressed & [ OPT + ],
    REST  olist ].

onull := olist & null.

; The LinGO grammar also makes use of a prolist -- or list
; of synsems of type pro-ss. 


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Lexical rules

; Grammars should be monotonic in their construction of semantic
; representations.  That is, as the tree is built, no relations should
; ever be thrown away.  This has implications for the way lexical rules
; are written.  If two forms are related to each other, and one has
; more semantic relations than the other, it has to be the output. 
; We are interested in cases where this constraint is or appears to
; be problematic.

lex-rule := phrase-or-lexrule & word-or-lexrule &
  [ NEEDS-AFFIX bool,
    SYNSEM.LOCAL.CONT [ RELS [ LIST #first,
			     LAST #last ],
			HCONS [ LIST #hfirst,
				LAST #hlast ] ],
    DTR #dtr & word-or-lexrule &
	[ SYNSEM.LOCAL.CONT [ RELS [ LIST #first,
		  	             LAST #middle ],
			      HCONS [ LIST #hfirst,
				      LAST #hmiddle ] ],
	  ALTS #alts ],
    C-CONT [ RELS [ LIST #middle,
		    LAST #last ],
	     HCONS [ LIST #hmiddle,
		     LAST #hlast ]],
    ALTS #alts,
    ARGS < #dtr > ].

; Lexical rules vary on two dimensions: whether they are lexeme-to-lexeme
; or lexeme-to-word and whether or not they involve spelling changes.
; Accordingly, we define four subtypes of lex-rule, which have
; four cross-classified glb subtypes:

; Note that the lexeme/word distinction is represented via a feature
; [INFLECTED bool] rather than as a type.  We find this more convenient,
; as it allows certain words to be [INFLECTED +] from the start without
; having to twist the hierarchy too much (especially if one makes use
; of defaults).

; Lexeme-to-word rules are hypothesized to monotonically add synsem
; information.

; ERB 2005-04-14 But it's a bad idea to copy the whole synsem
; value, since that means identifying RELS and HCONS lists, breaking
; the diff-list append.

lexeme-to-word-rule := same-local-lex-rule &
		       same-modified-lex-rule &
		       same-light-lex-rule &
		       same-non-local-lex-rule &
  [ INFLECTED +,
    DTR [ INFLECTED - ],
    C-CONT [RELS <! !>,
	    HCONS <! !>]].

; Lexeme-to-lexeme rules can make more radical changes to the SYNSEM value.
; (ERB 2004-02-11) This used to inherit from "lexeme" but now there is no
; such type.  What was its purpose? (ERB 2007-02-13) Perhaps it was used
; to encode the lexeme/word distinction, now handled by the feature
; INFLECTED.

; (ERB 2007-02-12) Removing identity of MC here because this to can be
; changed by ltol rules.  Creating a new type same-mc-lex-rule, etc.

lexeme-to-lexeme-rule := lex-rule & 
  [ INFLECTED #infl,
    DTR.INFLECTED #infl ].

; ERB 2005-04-13 Add a few subtypes that copy up most other information,
; so that folks don't have to keep doing this. 

; ERB 2005-04-14 If we copy the whole LOCAL value,
; we're copying RELS and HCONS, which means we can't
; add any sem through C-CONT. Thus what is 'logically'
; same-local is really a bunch of smaller identities.

;same-local-lex-rule := lexeme-to-lexeme-rule &
;  [ SYNSEM.LOCAL #local,
;    DTR.SYNSEM.LOCAL #local ].

; ERB 2005-04-14 Don't want any of these inheriting
; from lexeme-to-lexeme because they're supertypes
; to lexeme-to-word.  This part of the hierarchy probably
; needs to be cleaned up a bit.

same-local-lex-rule := same-cat-lex-rule & 
		       same-cont-lex-rule &
		       same-ctxt-lex-rule &
		       same-agr-lex-rule.

same-non-local-lex-rule := lex-rule &
  [ SYNSEM.NON-LOCAL #nl,
    DTR.SYNSEM.NON-LOCAL #nl ].

; ERB 2007-05-16 Not everything is inside LOCAL or NON-LOCAL.

same-modified-lex-rule := lex-rule &
  [ SYNSEM.MODIFIED #mod,
    DTR.SYNSEM.MODIFIED #mod ].

same-light-lex-rule := lex-rule &
  [ SYNSEM.LIGHT #light,
    DTR.SYNSEM.LIGHT #light ].

same-ctxt-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.CTXT #ctxt,
    DTR.SYNSEM.LOCAL.CTXT #ctxt ].

; ERB 2005-04-14 Can't just identify CONT values,since
; that makes it impossible to add any RELS/HCONS through
; C-CONT. Instead this type should identify HOOK.

; ERB 2005-05-16 Copy MSG too!
; ERB 2007-01-21 Making MSG a feature (SF) of events.
; ERB 2007-02-20 Copy daughter's HOOK to C-CONT rather than to mother's
; HOOK, for uniformity.

same-cont-lex-rule := lex-rule &
  [ C-CONT [ HOOK #hook ],
    DTR.SYNSEM.LOCAL.CONT [ HOOK #hook ]].

same-agr-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.AGR #agr,
    DTR.SYNSEM.LOCAL.AGR #agr ].

same-cat-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.CAT #cat,
    DTR.SYNSEM.LOCAL.CAT #cat ].

same-head-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.CAT.HEAD #head,
    DTR.SYNSEM.LOCAL.CAT.HEAD #head ].

same-val-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.CAT.VAL #val,
    DTR.SYNSEM.LOCAL.CAT.VAL #val ].

same-hc-light-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.CAT.HC-LIGHT #hcl,
    DTR.SYNSEM.LOCAL.CAT.HC-LIGHT #hcl ].

same-posthead-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.CAT.POSTHEAD #ph,
    DTR.SYNSEM.LOCAL.CAT.POSTHEAD #ph ].

same-mc-lex-rule := lex-rule &
  [ SYNSEM.LOCAL.CAT.MC #mc,
    DTR.SYNSEM.LOCAL.CAT.MC #mc ].

no-ccont-lex-rule := lex-rule &
  [ C-CONT [ RELS <! !>,
	     HCONS <! !> ]].

; ERB 2007-05-16 Realized I haven't been copying up MODIFIED
; and LIGHT.  Fixing that.

non-local-change-only-lex-rule := same-local-lex-rule &
				  same-modified-lex-rule &
				  same-light-lex-rule &
				  no-ccont-lex-rule.

local-change-only-lex-rule := same-non-local-lex-rule &
			      same-modified-lex-rule &
			      same-light-lex-rule &
			      no-ccont-lex-rule.

; ERB 2004-04-13 The only permissible changes to CONT are
; inside HOOK.  If any RELS or HCONS need to be added, they
; should be added through the lex-rule's C-CONT.  For this reason,
; this type does not inherit from no-ccont-lex-rule, and any
; subtypes/instances should properly constrain the values of
; C-CONT.RELS and C-CONT.HCONS. No relations may be dropped.

; ERB 2004-04-14  But identifying RELS and HCONS is no good,
; because that breaks the diff-list append that should
; let you add info through C-CONT.  So just go with the
; text warning above.

cont-change-only-lex-rule := same-non-local-lex-rule &
			     same-modified-lex-rule &
			     same-light-lex-rule &
			     same-ctxt-lex-rule &
			     same-cat-lex-rule &
			     same-agr-lex-rule.

ctxt-change-only-lex-rule := local-change-only-lex-rule & 
			     same-cont-lex-rule &
			     same-cat-lex-rule &
			     same-agr-lex-rule.

agr-change-only-lex-rule := local-change-only-lex-rule &
			    same-cont-lex-rule &
			    same-cat-lex-rule &
			    same-ctxt-lex-rule.

cat-change-only-lex-rule := local-change-only-lex-rule &
			    same-ctxt-lex-rule &
			    same-cont-lex-rule &
			    same-agr-lex-rule.

head-change-only-lex-rule := cat-change-only-lex-rule &
			     same-val-lex-rule &
			     same-hc-light-lex-rule &
			     same-posthead-lex-rule &
			     same-mc-lex-rule.

mc-change-only-lex-rule := cat-change-only-lex-rule &
			     same-val-lex-rule &
			     same-hc-light-lex-rule &
			     same-posthead-lex-rule &
			     same-head-lex-rule.

; ERB 2005-04-13 When using val-change-only-lex rule, be sure
; to constrain the values of all of the VAL features (SPR, SUBJ,
; COMPS and SPEC) on the mother.

val-change-only-lex-rule := cat-change-only-lex-rule &
			     same-head-lex-rule &
			     same-hc-light-lex-rule &
			     same-posthead-lex-rule &
			     same-mc-lex-rule.

; ERB 2007-02-13 These two should only be inherited by ltol types,
; since they are redundant with constraints on lexeme-to-word-rule.

add-only-rule := same-local-lex-rule &
		 same-modified-lex-rule &
		 same-light-lex-rule &
	         same-non-local-lex-rule.

add-only-no-ccont-rule := add-only-rule &
			  no-ccont-lex-rule.

; Spelling changing rules.  The LKB identifies these rules based
; on the NEEDS-AFFIX value. 

inflecting-lex-rule := lex-rule &
  [ NEEDS-AFFIX + ].

; Spelling-preserving rules copy up the STEM (orthography) of
; the daughter.

constant-lex-rule := lex-rule &
  [ STEM #stem,
    DTR [ STEM #stem ]].

; Cross-classified types packaing spelling change status and
; feature copying.

const-ltol-rule := lexeme-to-lexeme-rule & constant-lex-rule & nocoord.
infl-ltol-rule := lexeme-to-lexeme-rule & inflecting-lex-rule & nocoord.
const-ltow-rule := lexeme-to-word-rule & constant-lex-rule & nocoord.
infl-ltow-rule := lexeme-to-word-rule & inflecting-lex-rule & nocoord.

infl-non-local-change-only-ltol-rule := non-local-change-only-lex-rule &
					infl-ltol-rule.

infl-local-change-only-ltol-rule := local-change-only-lex-rule &
				    infl-ltol-rule.

infl-cont-change-only-ltol-rule := cont-change-only-lex-rule &
				   infl-ltol-rule.

infl-ctxt-change-only-ltol-rule := ctxt-change-only-lex-rule &
				   infl-ltol-rule.

infl-agr-change-only-ltol-rule := agr-change-only-lex-rule &
				  infl-ltol-rule.

infl-cat-change-only-ltol-rule := cat-change-only-lex-rule &
				  infl-ltol-rule.

infl-head-change-only-ltol-rule := head-change-only-lex-rule &
 				   infl-ltol-rule.

infl-val-change-only-ltol-rule := val-change-only-lex-rule &
				  infl-ltol-rule.

; ERB 2005-04-26 Take care with the following two rules.  While
; they likely won't be circular for parsing (since the surface form
; of the word will usually limit the number of times each can apply)
; they can easily spin in generation.  To make the input and output
; incompatible, I recommend constraining the type of the DTR to
; something incompatible with the type of the rule.

infl-add-only-ltol-rule := add-only-rule &
			   infl-ltol-rule.

infl-add-only-no-ccont-ltol-rule := add-only-no-ccont-rule &
				    infl-ltol-rule.

const-non-local-change-only-ltol-rule := non-local-change-only-lex-rule &
					 const-ltol-rule.

const-local-change-only-ltol-rule := local-change-only-lex-rule &
				     const-ltol-rule.

const-cont-change-only-ltol-rule := cont-change-only-lex-rule &
				    const-ltol-rule.

const-ctxt-change-only-ltol-rule := ctxt-change-only-lex-rule &
				    const-ltol-rule.

const-agr-change-only-ltol-rule := agr-change-only-lex-rule &
				   const-ltol-rule.

const-cat-change-only-ltol-rule := cat-change-only-lex-rule &
				   const-ltol-rule.			       

const-head-change-only-ltol-rule := head-change-only-lex-rule &
				    const-ltol-rule.

const-val-change-only-ltol-rule := val-change-only-lex-rule &
				   const-ltol-rule.

; ERB 2005-04-14 Take care when using the following two types
; not to create circular rules.  They may still be useful (the
; latter is employed in the Slave grammar), but you'll need to
; make sure that the DTR type is incompatible with the rule type.

const-add-only-ltol-rule := add-only-rule &
			    const-ltol-rule.			   

const-add-only-no-ccont-ltol-rule := add-only-no-ccont-rule &
				     const-ltol-rule.


;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Phrase structure rules

; Headed phrases must obey the Head Feature Principle and the Revised
; Marking Principle.  They do not all obey the NLFP with respect to
; QUE, but it appears that all CLAUSE phrases account for QUE on
; mother and non-head-dtr.  Hence moved the QUE coreference to
; NON-CLAUSE.  Headed phrases also identify the value of AGR on mother
; and head daughter, unlike e.g. the coordination schemata which
; identify HEAD but not AGR.
;
; sfd 08/02/2005: Added constraints on COORD and COORD-REL.  COORD
; must be "-" for all phrases that aren't participating in
; coordination.  Also identify the COORD-REL so it gets passed up.

headed-phrase := phrase & 
  [ SYNSEM.LOCAL [ CAT.HEAD head & #head,
                   AGR #agr,
                   COORD -,
                   COORD-REL #crel ],
    HEAD-DTR.SYNSEM.LOCAL local &
		 [ CAT.HEAD #head,
                   AGR #agr,
                   COORD -,
                   COORD-REL #crel ] ].

non-headed-phrase := phrase.

; Most but not all phrases have SYNSEM phr-synsem; head-complement
; constructions have their SYNSEM type determined by the head-dtr.

phrasal := phrase &
  [ SYNSEM phr-synsem ].

; ERB 2005-05-04 If messages are introduced by unary rules at the
; top of each clause, most phrase types should say [MSG no-msg]
; on the mother.  The exceptions to this are the clauses themselves
; and coordination constructions.

; ERB 2005-05-11 This is not the right way to do it.  There are 
; going to be cases (e.g., quantifiers) where we want the MSG
; of the head daughter copied up to the mother.   Let's try
; making (normal) lexical items MSG no-msg, and having the no-msg-phrase
; copy the info up.  Make no-msg-phrase inherit from headed-phrase.
; Non-headed phrases will have to say something about the MSG
; of the mother.

; ERB 2007-01-21 Getting rid of message relations.  SF will now
; be a feature of the EVENT, so it will go up the semantic head path
; anyway. (Need to be careful about not setting it too early.)

;no-msg-phrase := headed-phrase &
;  [ SYNSEM.LOCAL.CONT.MSG #msg, 
;    HEAD-DTR.SYNSEM.LOCAL.CONT.MSG #msg ].

; Head/nexus phrases pass up the REL and QUE values of the head daughter
; (which has amalgamated the REL and QUE values of its arguments as in
; Sag 1997) to the mother.  

head-nexus-rel-phrase := headed-phrase &
  [ SYNSEM.NON-LOCAL.REL #rel,
    HEAD-DTR.SYNSEM.NON-LOCAL.REL #rel ].

head-nexus-que-phrase := headed-phrase &
  [ SYNSEM.NON-LOCAL.QUE #que,
    HEAD-DTR.SYNSEM.NON-LOCAL.QUE #que ].

; ERB 2005-05-04 If messages are introduced by unary rules at the
; top of each clause, most phrase types should say [MSG no-msg]
; on the mother.  The exceptions to this are the clauses themselves
; and coordination constructions.

; ERB 2007-01-21 Removed supertype no-msg-phrase.

head-nexus-phrase := head-nexus-rel-phrase & head-nexus-que-phrase.


; In a head/local dependent phrase, the SLASH feature of the mother is
; token-identical to that of the head daughter, which has already amalgamated
; the SLASH values of its arguments.  See discussion of head-nexus-phrase for
; treatment of REL and QUE.

head-valence-phrase := head-nexus-phrase &
  [ SYNSEM.NON-LOCAL.SLASH #slash,
    HEAD-DTR.SYNSEM.NON-LOCAL.SLASH #slash ].

; All phrases are either unary or binary.

basic-unary-phrase := phrase &
  [ STEM #stem,
    SYNSEM.LOCAL.CONT [ RELS [ LIST #first,
        		       LAST #last ],
			HCONS [ LIST #scfirst,
				LAST #sclast ] ],
    C-CONT [ RELS [ LIST #middle,
		    LAST #last ],
	     HCONS [ LIST #scmiddle,
		     LAST #sclast ] ],
    ARGS < sign & [ STEM #stem,
                    SYNSEM.LOCAL local &
				 [ CONT [ RELS [ LIST #first,
						 LAST #middle ],
					  HCONS [ LIST #scfirst,
						  LAST #scmiddle ] ] ] ] > ].

unary-phrase := basic-unary-phrase &
  [ INFLECTED +,
    ARGS < [ INFLECTED + ] > ].

basic-binary-phrase := phrase &
  [ SYNSEM.LOCAL.CONT [ RELS [ LIST #first,
			       LAST #last ],
			HCONS [ LIST #scfirst,
				LAST #sclast ] ],
    C-CONT [ RELS [ LIST #middle2,
		    LAST #last ],
	     HCONS [ LIST #scmiddle2,
		     LAST #sclast ] ],
    ARGS < sign & [ SYNSEM.LOCAL local &
				 [ CONT [ RELS [ LIST #first,
						 LAST #middle1 ],
					  HCONS [ LIST #scfirst,
						  LAST #scmiddle1 ] ] ] ],
	   sign & [ SYNSEM.LOCAL local &
				 [ CONT [ RELS [ LIST #middle1,
						 LAST #middle2 ],
					  HCONS [ LIST #scmiddle1,
						  LAST #scmiddle2 ] ] ] ] > ].

binary-phrase := basic-binary-phrase &
  [ INFLECTED +,
    ARGS < [ INFLECTED + ],
           [ INFLECTED + ] > ].

basic-binary-headed-phrase := headed-phrase & basic-binary-phrase &
  [ NON-HEAD-DTR sign & [ SYNSEM.LOCAL.COORD - ] ].

binary-headed-phrase := basic-binary-headed-phrase & binary-phrase.

; ERB (2007-02-13) Adding these for handling constructions where a marker
; shows up simultaneously on both ends of the phrase, such as negation
; in Hausa and question marking in ASL.  (For the latter case, what's
; really going on is a non-manual sign extending the length of the clause,
; but a convenient single-line representation uses left and right brackets
; to show the duration of the non-manual.)

basic-ternary-phrase := phrase &
  [ SYNSEM.LOCAL.CONT [ RELS [ LIST #first,
			       LAST #last ],
			HCONS [ LIST #scfirst,
				LAST #sclast ] ],
    C-CONT [ RELS [ LIST #middle3,
		    LAST #last ],
	     HCONS [ LIST #scmiddle3,
		     LAST #sclast ] ],
    ARGS < sign & [ SYNSEM.LOCAL local &
				 [ CONT [ RELS [ LIST #first,
						 LAST #middle1 ],
					  HCONS [ LIST #scfirst,
						  LAST #scmiddle1 ] ] ] ],
	   sign & [ SYNSEM.LOCAL local &
				 [ CONT [ RELS [ LIST #middle1,
						 LAST #middle2 ],
					  HCONS [ LIST #scmiddle1,
						  LAST #scmiddle2 ] ] ] ],
	   sign & [ SYNSEM.LOCAL local & 
				 [ CONT [ RELS [ LIST #middle2,
						 LAST #middle3 ],
					  HCONS [ LIST #scmiddle2,
						  LAST #scmiddle3 ] ] ] ]> ].

ternary-phrase := basic-ternary-phrase &
  [ INFLECTED +,
    ARGS < [ INFLECTED +, 
	     SYNSEM.LOCAL.COORD - ],
           [ INFLECTED +, 
	     SYNSEM.LOCAL.COORD - ],
           [ INFLECTED +, 
	     SYNSEM.LOCAL.COORD - ] > ].


ternary-headed-phrase := headed-phrase & ternary-phrase.

; ERB (2007-02-12) Hypothesizing for now that these will never be fulfilling
; valence requirements of the head, so just copy that up.  

; ERB (2007-02-26) Clearly this shouldn't be head-compositional, since
; we're using it for negation in Hausa and ASL.

ternary-head-middle-phrase := ternary-headed-phrase & 
  [ SYNSEM.LOCAL.CAT.VAL #val,
    HEAD-DTR #head &
	     [ SYNSEM.LOCAL.CAT.VAL #val ],
    ARGS.REST.FIRST #head ].


; For more effecient parsing, designate one argument or the other
; as the KEY-ARG: that which should be unified with first.

binary-rule-left-to-right := rule &
  [ ARGS < [ KEY-ARG + ] , [ KEY-ARG bool ] > ].

binary-rule-right-to-left := rule &
  [ ARGS < [ KEY-ARG bool ], [ KEY-ARG + ] > ].

; ERB 2005-05-04 If messages are introduced by unary rules at the
; top of each clause, most phrase types should say [MSG no-msg]
; on the mother.  The exceptions to this are the clauses themselves
; and coordination constructions.  Basic-head-only is for 
; the clauses.

; ERB 2007-01-21 Removing no-msg-phrase.

head-only := unary-phrase & headed-phrase &
  [ HEAD-DTR #head,
    ARGS < #head > ].

;head-only := basic-head-only & no-msg-phrase.

head-initial := binary-headed-phrase &
  [ HEAD-DTR #head,
    NON-HEAD-DTR #non-head,
    ARGS < #head, #non-head > ].

basic-head-final := basic-binary-headed-phrase &
  [ HEAD-DTR #head,
    NON-HEAD-DTR #non-head,
    ARGS < #non-head, #head > ].

head-final := basic-head-final & binary-headed-phrase.

; C-CONT is the semantic contribution of the phrase itself.  The hook 
; of the phrase is identified with the hook of C-CONT (which is possibly
; but not necessarily identified with the hook of one of the daughters.
; The rels of the phrase result from appending the rels of C-CONT and the
; rels of the daughters.

; Head-compositional phrases identify the syntactic head daughter as the
; semantic head.

head-compositional := headed-phrase &
  [ C-CONT.HOOK #hook,
    HEAD-DTR.SYNSEM.LOCAL.CONT.HOOK #hook ].

; Clauses have message types as values, non-clauses have the value no-msg.
; Constrain the HEAD value of clause to verb or whatever type is
; appropriate.  Clauses have empty QUE values.
; Later versions of the Matrix might have clause v. non-clause as
; an independent dimension from headed v. non-headed phrase, as in
; Ginzburg & Sag 2000.  The phrase types are meant to cross-classify
; with the clause types to give e.g., decl-head-subj from decl-clause
; and head-subj-phrase.  

; ERB 2004-08-26 Remove [MC na], which is probably specific
; to some analysis for English.

; ERB 2005-05-11 I'm not sure what use non-clause is in the current
; system, and the constraint MSG no-msg is a little suspicious.  
; It seems to only be used for head-spec phrases right now, though,
; so leave it for now.

; ERB 2007-01-21 I'm not sure there's really any use for non-clause
; in the message-free universe.

;non-clause := head-nexus-phrase &
;  [ SYNSEM.LOCAL [ CONT.MSG no-msg ] ].

;clause := phrasal &
;  [ SYNSEM [ LOCAL.CAT.VAL.COMPS olist,
;	     NON-LOCAL.QUE 0-dlist ] ].

; ERB 2007-01-21 COMPS olist is no longer a fair constraint on
; clauses, under current analysis.

clause := phrasal &
  [ SYNSEM.NON-LOCAL.QUE 0-dlist ].


; The following subtypes of clause will need more constraints,
; as appropriate:

; Relative clauses are propositions, but depending on the analysis
; of the construction, the message may actually come from the daughter.

; ERB 2007-01-21 Adding constraint that should specialize prop-or-ques
; to prop as value of SF.  (See notes at interrogative-clause.)

; ERB 2007-01-22 ... but I'm not sure we can assume that relative-clauses
; are headed phrases.  So, I'm going to comment out this type for now,
; pending the developmet of a relative clause library.

;relative-clause := clause &
;  [ HEAD-DTR.SYNSEM.LOCAL.CONT.HOOK.INDEX.SF prop ].
  
; This type does not constrain the length of the C-CONT..RELS
; in order to allow for clause types which insert two messages
; (e.g., interrogatives, which need to add both a question_m_rel
; and the embedded proposition_m_rel), or which some other
; constructional content in addition to the message.

; The MARG isn't related to anything in this type.  There are
; two canonical possibilities: either the MARG qeqs the LTOP of
; the head daughter, or it is equal to the LBL of another message
; (again, the case of interrogatives, if there is one construction
; which introduces both messages).

; ERB 2005-05-04 Making all of these basic-head-only (non-branching
; constructions).  Need to work on relative clauses at a later date.

; ERB 2007-01-21 No more messages.  This type now enforces some
; constraints on the non-local features, but that's just about it.
; (And we haven't really worked on LDDs in the Matrix yet.)  I'm not
; sure that there's really that much work for this type to do...
; Since we're not adding message relations anymore, I'm going to assume
; that the C-CONT.RELS and C-CONT.HCONS are empty.

; ERB 2007-01-21 Er, not head-only any more, though. 

basic-non-rel-clause := clause & head-compositional &
  [ SYNSEM.NON-LOCAL.REL 0-dlist,
    HEAD-DTR.SYNSEM.NON-LOCAL [ QUE 0-dlist,
				REL 0-dlist ],
    C-CONT [ RELS <! !>,
	     HCONS <! !> ]].

; For non-interrogative non-rel clauses, hook up 
; MARG to head daughter's LTOP.  Subtypes will need
; to constrain length of HCONS and RELS.

; ERB 2007-01-21 No more messages.

;non-rel-clause := basic-non-rel-clause & 
;   [ SYNSEM.LOCAL.CONT.MSG.MARG #marg,
;     HEAD-DTR.SYNSEM.LOCAL.CONT.HOOK.LTOP #ltop,
;     C-CONT.HCONS.LIST.FIRST qeq & [ HARG #marg,
;				     LARG #ltop ]].

; ERB 2004-05-18 Make these inherit from non-rel-clause instead
; of just clause, so that something does the work of putting
; the message on the RELS list.

; ERB 2005-05-04 Trying out an analysis of clausal semantics where the
; message is always introduced by a non-branching construction.  This
; goes against Ginzburg & Sag's (2000) strategy of cross-classifying
; phrase types with clause types, but it seems more practical for the
; Matrix, for two reasons: (i) In a free word order language, the
; `root' node in their strategy could be a head-subj, could be a
; head-comp, etc. and (ii) it's just easier to conceive of the
; crosslinguistic variation this way.  Leave the length of C-CONT.RELS
; and C-CONT.HCONS unspecified for the moment on interrogatives.  In
; some cases, it might be helpful to have the interrogatives put in
; both the prpstn and the ques messages.  Likewise, don't require
; MSG no-msg on the head daugther of interrogatives.

; ERB 2007-01-21 Moving to a message-free universe.  These guys
; now constrain the value of SF on the INDEX (event variable).
; How to keep them from spinning, though?  For now, trying the following
; strategy:
; 1. All rules that satisfy the subject requirement add clausal semantics
; (either prop-or-ques or comm).  
; 2. Complementizers (including matrix question/statement particles) can
; further constrain message value.
; 3. Head-filler phrases (for questions) can further constraint message value.
; 4. To force things to undergo question rules like the yesno rule from
; the ERG, take advanteg of [MC na] --- see ERG
; 5. Relative-clause rule constrains down from prop-or-ques to prop.
; 6. Since clausal semantics is tied to satisfaction of subject requirement
; and/or an appropriate MC value, assume that these will be enough and
; no further modification of the root condition is required.

interrogative-clause := basic-non-rel-clause & 
  [ SYNSEM.LOCAL.CONT.HOOK.INDEX.SF ques ].

declarative-clause := basic-non-rel-clause & 
  [ SYNSEM.LOCAL.CONT.HOOK.INDEX.SF prop-or-ques ].

imperative-clause := basic-non-rel-clause & 
  [ SYNSEM.LOCAL.CONT.HOOK.INDEX.SF comm ].

; ERB 2004-08-26 The analysis of relative clauses in the ERG
; requires that the relative clause construction (a kind of
; "head" filler phrase) not actually be a subtype of 
; headed-phrase.  This is because the HEAD.MOD value of
; the mother and the would-be head daughter differ.
; Thus basic-filler-phrase does not inherit form headed-phrase.
; We provide a subtype, basic-head-filler-phrase, below, which does.

basic-filler-phrase := binary-phrase & phrasal &
  [ SYNSEM [ LOCAL [ CAT [ VAL [ COMPS < >,
                                 SPR < > ],
			   POSTHEAD + ] ],
	     NON-LOCAL.SLASH 0-dlist ],
    ARGS < [ SYNSEM [ LOCAL #slash & local &
			    [ CAT.VAL [ SUBJ olist,
					COMPS olist,
					SPR olist ],
			      CTXT.ACTIVATED + ],
		      NON-LOCAL.SLASH 0-dlist ] ],
	   [ SYNSEM [ LOCAL.CAT [ VAL.COMPS olist ],
		      NON-LOCAL [ SLASH 1-dlist &
					[ LIST [ FIRST #slash,
						 REST < > & #last ],
					  LAST #last ],
				  QUE 0-dlist,
				  REL 0-dlist ] ] ] > ].

basic-head-filler-phrase := basic-filler-phrase & headed-phrase.

; These phrase types should all inherit from head-final or head-initial,
; as appropriate, replacing binary-headed-phrase.

; Don't assume that all comps are realized before the subject
; in all languages.  Remove COMPS olist from this one.  In languages
; which do realize all COMPS before the SUBJ, the head-subj-phrase
; should allow [COMPS olist] on the head daughter but constrain
; the mother to be [COMPS < >].

; ERB 2004-05-24 In anticipation of this type being cross-classified
; with decl-clause in at least some languages, it does not inherit
; from head-compositional, nor constrain the length of its C-CONT.RELS
; and C-CONT.HCONS lists.  Subtypes of this type in specific grammars
; should inherit from either a clause-type or from head-compositional,
; and ensure that the length of these lists is specified appropriately.

; ERB 2004-12-14 For purposes of testing word order modules, assume
; for now that we're going to go with a non-branching rule analysis
; of message introduction.  Make basic-head-subj phrase inherit from
; head-compositional and constraint C-CONT.RELS and C-CONT.HCONS like
; everyone else.

; ERB 2004-08-26 Remove [MC na] on head daughter; probably specific
; to some analysis for English.

; ERB 2005-08-12 Need [ LIGHT - ] on mother, so add SYNSEM phr-synsem.

; ERB 2007-01-21 Moving to message-free universe.  Working with the
; hypothesis that head-subj phrases give clausal semantics --- either
; declarative (prop-or-ques) or imperative (comm).  Can further constrain
; C-CONT to be  RELS <! !>, now that we're not putting in messages.  (Hey:
; that was already the case. Or not, now I don't see it?)

basic-head-subj-phrase := head-valence-phrase & binary-headed-phrase &
			  head-compositional &
  [ SYNSEM phr-synsem & 
	   [ LOCAL.CAT [ POSTHEAD +,
			 VAL [ SUBJ < >,
			       COMPS #comps,
			       SPR #spr ] ] ],
    C-CONT [ RELS <! !>,
	     HCONS <! !> ],
    HEAD-DTR.SYNSEM.LOCAL.CAT.VAL [ SUBJ < #synsem >,
				      COMPS #comps,	
                                      SPR #spr ],
    NON-HEAD-DTR.SYNSEM #synsem & canonical-synsem &
		 [ LOCAL [ CAT [ VAL [ SUBJ olist,
				       COMPS olist,
				       SPR olist ] ] ],
		   NON-LOCAL [ SLASH 0-dlist & [ LIST < > ],
			       REL 0-dlist,
			       QUE 0-dlist ] ]].

decl-head-subj-phrase := basic-head-subj-phrase & declarative-clause.
imp-head-subj-phrase := basic-head-subj-phrase & imperative-clause.

; ERB 2004-08-26 Remove [MC na] on both daughters; probably specific
; to some analysis for English.  

; ERB 2007-01-21 Removing non-clause, which doesn't seem to be doing
; any work any more.

; GCS 2009-02-19 changed identifying of COMPS of the mother with
; the COMPS of the non-head daughter. Instead identify the COMPS 
; of the mother with the COMPS of the head-daughter

basic-head-spec-phrase := head-valence-phrase & phrasal &
			  binary-headed-phrase &
  [ INFLECTED +,
    SYNSEM [ LOCAL.CAT [ VAL [ SUBJ #subj,
                               COMPS #comps,
                               SPR #spr,
                               SPEC #spec ],
                         POSTHEAD #ph ],
             MODIFIED #modif ],
    HEAD-DTR [ INFLECTED +,
               SYNSEM [ LOCAL [ CAT [ HEAD #head,
                                      VAL [ SUBJ #subj,
                                            COMPS olist & #comps,
                                            SPR < #synsem & 
                                                  canonical-synsem . #spr >,
                                            SPEC #spec ],
                                      POSTHEAD #ph ],
                                CONT.HOOK #hdhook ],
                        MODIFIED #hmodif ] ],
    NON-HEAD-DTR.SYNSEM #synsem &
	 [ LOCAL [ CAT [ VAL [ SPEC < [ LOCAL [ CAT [ HEAD #head,
                                                      VAL.COMPS #comps ],
                                                CONT.HOOK #hdhook ],
                                        MODIFIED #hmodif ] > ] ],
                   CONT.HOOK #hook ],
           MODIFIED #modif ],
    C-CONT [ HOOK #hook,
             RELS <! !>,
	     HCONS <! !> ] ].

; Value of LIGHT comes from head-daughter's specification in HC-LIGHT.

; ERB (2005-08-10) Change value of SYNSEM from canonical-synsem to
; phr-synsem-min, so that LKEYS is not an appropriate feature.

; ERB (2005-08-12) We need to copy of HC-LIGHT as well, for cases
; where there are multiple complements.
; ASF (2008-11-03) for the current v2 analysis, we need head-comp-phrase
; that does not pass up the MC feature..token id between mother and head
; daughter removed


basic-head-comp-phrase := head-valence-phrase & head-compositional &
			  binary-headed-phrase &
  [ SYNSEM phr-synsem-min &
	   [ LOCAL.CAT [ VAL [ SUBJ #subj,
			       SPR #spr ],
			 POSTHEAD #ph,
			 HC-LIGHT #light ],
             LIGHT #light ],
    HEAD-DTR.SYNSEM [ LOCAL.CAT [ VAL [ SUBJ #subj,
                                        SPR #spr ],
				  HC-LIGHT #light,
                                  POSTHEAD #ph ]], 
    NON-HEAD-DTR.SYNSEM canonical-synsem,
    C-CONT [ RELS <! !>,
	     HCONS <! !> ] ].

; ERB 2004-12-14 This is what used to be called basic-head-comp-phrase.

basic-head-1st-comp-phrase := basic-head-comp-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.COMPS #comps,
    HEAD-DTR.SYNSEM.LOCAL.CAT.VAL.COMPS < #synsem . #comps >,
    NON-HEAD-DTR.SYNSEM #synsem ].

; ERB 2004-12-14 First pass at a rule that realizes complements
; out of order.

basic-head-2nd-comp-phrase := basic-head-comp-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.COMPS < #firstcomp . #othercomps >,
    HEAD-DTR.SYNSEM.LOCAL.CAT.VAL.COMPS [ FIRST #firstcomp,
					  REST < #synsem . #othercomps > ],
    NON-HEAD-DTR.SYNSEM #synsem ].



; Skip an optional complement as long as there is still another obligatory
; complement on the list.  Two subtypes allow for one or two optional
; complements before an obligatory one.

; ERB 2004-05-10 Moving towards discharing all optional complements,
; so we no longer require that there are other expressed arguments
; before suppressing something with unexpressed.
; Still requiring [ HEAD-DTR..INDEX event ] as we might not
; want to go around discharging all optional complements of nouns.
; We'll probably want to make this a language-specific choice, eventually.
; Need to decide what to do about LIGHT here.  
; The feature DEF-OPT allows the head to specify whether the optional
; complement is interpreted as definite (+), indefinite (-), or
; either (underspecified).  basic-head-opt-comp-phrase copies this
; information into the index of the unexpressed argument.

basic-head-opt-comp-phrase := head-valence-phrase & head-only &
                              head-compositional &
  [ INFLECTED #infl,
    SYNSEM canonical-synsem &
	   [ LOCAL.CAT [ VAL [ SUBJ #subj,
			       COMPS #comps,
                               SPR #spr,
                               SPEC #spec ],
                         MC #mc,
                         POSTHEAD #ph ],
             MODIFIED #mod ],
    HEAD-DTR [ INFLECTED #infl & +,
             SYNSEM [ LOCAL [ CAT [ VAL [ SUBJ #subj,
					  COMPS < unexpressed &
						  [ OPT +,
						    OPT-CS #def,
						    LOCAL.CONT.HOOK.INDEX.COG-ST #def ] . #comps >,
					  SPR #spr,
                                        SPEC #spec ],
				    MC #mc,
				    POSTHEAD #ph ],
			      CONT.HOOK.INDEX event ],
                      MODIFIED #mod ] ],
    C-CONT [ RELS <! !>,
	     HCONS <! !> ] ].


; ERB 2004-05-10 For languages that allow "pro-drop" of subjects.
; (Languages that also allow "pro-drop" of other arguments will
; use this rule in addition to the head-opt-comp-phrase.)  Hypothesizing
; that null instantiation of subjects is always definite null instantiation.
; This rule is constrained to apply after all complements are discharged.

; ERB 2004-06-08 In anticipation of this type being cross-classified
; with decl-clause in at least some languages, it does not inherit
; from head-compositional, nor constrain the length of its C-CONT.RELS
; and C-CONT.HCONS lists.  Subtypes of this type in specific grammars
; should inherit from either a clause-type or from head-compositional,
; and ensure that the length of these lists is specified appropriately.

; ERB 2007-01-21 Removing messages in favor of the feature SF.  On
; this first pass, trying to insert SF information whenever subject
; requirements are discharged.  Hmmm, again this was already RELS <! !>
; and HCONS <! !> in C-CONT.

; ERB 2007-05-16 Moving MC identification from basic-head-opt-subj-phrase
; down to decl-head-opt-subj-phrase, since we might *not* want it for
; imperatives.

basic-head-opt-subj-phrase := head-valence-phrase & head-only &
  [ INFLECTED #infl,
    SYNSEM canonical-synsem &
	      [ LOCAL.CAT [ VAL [ SUBJ < >,
				  COMPS #comps,
				  SPR #spr,
				  SPEC #spec ],
			    POSTHEAD #ph ],
		MODIFIED #mod ],
    C-CONT [ RELS <! !>,
	     HCONS <! !> ],
    HEAD-DTR [ INFLECTED #infl & +,
		SYNSEM [ LOCAL [ CAT [ VAL [ SUBJ < unexpressed-reg &
						    [ OPT +,
						      LOCAL.CONT.HOOK.INDEX.COG-ST in-foc ] >,
					     COMPS #comps & < >,
					     SPR #spr,
					     SPEC #spec ],
				       POSTHEAD #ph ],
				 CONT.HOOK.INDEX event ],
			 MODIFIED #mod ] ] ].

; ERB 2007-01-21 Subtypes for declaratives and imperatives

decl-head-opt-subj-phrase := basic-head-opt-subj-phrase & declarative-clause &
  [ SYNSEM.LOCAL.CAT.MC #mc,
    HEAD-DTR.SYNSEM.LOCAL.CAT.MC #mc ].

imp-head-opt-subj-phrase := basic-head-opt-subj-phrase & imperative-clause.


; ASF 2008-11-18 Introducing a "basic-marker-comp-phrase", which basically
; behaves just like a head-comp-phrase, except that the phrase's head is not
; token-identical to that of the HEAD-DTR. We found this solution necessary to
; implement non-harmonic word order of auxiliaries that take a verb (not vp) as
; complement. The general idea of behaviour as head-comp, but without sharing 
; all head-features could be useful for other phenomena, hence our decision to
; put it in the matrix. 

; ASF 2008-11-18 The name MARKER-DTR is based on theoretical HPSG's HEAD-MARKER 
; structure, but note that the marker-comp construction does not correspond to 
; PS-84's head-marker structure (since the complement is not a head)



marker-phrase := binary-phrase &
  [ SYNSEM.LOCAL [ AGR #agr,
                   COORD -,
                   COORD-REL #crel,
                   CONT.HOOK #hook ],
    C-CONT.HOOK #hook,
    MARKER-DTR.SYNSEM.LOCAL local &
	 	      [ AGR #agr,
                        COORD -,
                        COORD-REL #crel,
                        CONT.HOOK #hook ] ].


basic-binary-marker-phrase := marker-phrase &
 [ NON-MARKER-DTR sign & [ SYNSEM.LOCAL.COORD - ] ].

basic-marker-comp-phrase := basic-binary-marker-phrase &
  [ SYNSEM phr-synsem-min &
	   [ LOCAL.CAT [ MC #mc,
			 VAL [ SUBJ #subj,
			       SPR #spr,
                               COMPS #comps ],
			 POSTHEAD #ph,
			 HC-LIGHT #light ],
             NON-LOCAL [ SLASH #slash,
                         REL #rel,
                         QUE #que ],
             LIGHT #light ],
    MARKER-DTR.SYNSEM [ LOCAL.CAT [ MC #mc,
                                  VAL [ SUBJ #subj,
                                        SPR #spr, 
                                        COMPS < #synsem . #comps > ],
				  HC-LIGHT #light,
                                  POSTHEAD #ph ], 
                      NON-LOCAL [ SLASH #slash,
                                  REL #rel,
                                  QUE #que ] ],
    NON-MARKER-DTR.SYNSEM canonical-synsem & #synsem  & 
                                      [ LOCAL.COORD - ],
    C-CONT [ RELS <! !>,
	     HCONS <! !> ] ].



marker-initial-phrase := basic-binary-marker-phrase &
 [ MARKER-DTR #marker,
   NON-MARKER-DTR #non-marker,
   ARGS < #marker, #non-marker > ].


marker-final-phrase := basic-binary-marker-phrase &
 [ MARKER-DTR #marker,
   NON-MARKER-DTR #non-marker,
   ARGS < #non-marker, #marker > ].



; ERB 2004-12-14 Type for optional specifier (determiner) phrases.
; Build NPs out of N's.  The specification [OPT +] on the head
; daughter's SPR value is meant to allow this rule to apply to
; some nouns and not others.  Nouns which require an overt specifier
; should lexically say [ OPT - ].  Nouns which optionally occur
; with a specifier can leave the OPT value of that argument unmarked.
; Nouns which only appear without a specifier need a SPR value which
; is incompatible with any of the available overt determiners.  This
; could conceivably be regulated on the basis of semantics.

basic-bare-np-phrase := head-only &
  [ SYNSEM.LOCAL.CAT.VAL [ SPR < >,
			   SUBJ < >,
			   COMPS < >,
			   SPEC < > ],
    HEAD-DTR.SYNSEM.LOCAL [ CAT.VAL [ SPR < [ LOCAL.CAT.HEAD det,
					      OPT + ] >,
				      SUBJ < >,
				      COMPS < > ],
			    CONT.HOOK [ INDEX #index,
					LTOP #larg ] ],
    C-CONT [ RELS <! quant-relation &
		   [ LBL #ltop,
		     ARG0 #index,
		     RSTR #harg ] !>,
	     HCONS <! qeq & 
		    [ HARG #harg,
		      LARG #larg ] !>,
	     HOOK [ INDEX #index,
		    LTOP #ltop ] ] ].

; Unary rules for extraction

basic-extracted-arg-phrase := head-valence-phrase & head-only &
  [ SYNSEM.LIGHT - ].

basic-extracted-comp-phrase := basic-extracted-arg-phrase & 
                               head-compositional &
  [ SYNSEM canonical-synsem &
	   [ LOCAL.CAT [ VAL [ SUBJ #subj,
                               SPR #spr,
                               COMPS #comps ],
                         MC #mc ] ],
    HEAD-DTR [ SYNSEM 
	       [ LOCAL.CAT [ VAL [ SUBJ #subj,
                                   SPR #spr,
                                   COMPS < gap &
                                           [ NON-LOCAL.SLASH #slash ]
                                           . #comps > ],
                             MC #mc ],
		 NON-LOCAL.SLASH #slash ] ],
    C-CONT [ RELS <! !>,
	     HCONS <! !> ] ].

; ERB 2004-08-26 Remove [MC -] on mother; probably specific
; to analysis of subject extraction for English.

basic-extracted-subj-phrase := basic-extracted-arg-phrase &
  [ SYNSEM.LOCAL.CAT.VAL [ SUBJ < >,
			   SPR < >,
			   COMPS < > ],
    HEAD-DTR.SYNSEM [ LOCAL.CAT [ VAL [ SUBJ < gap &
					       [ LOCAL #local & local &
						       [ CONT.HOOK.INDEX 
                                                                ref-ind ] ] >,
        				COMPS olist ],
				  MC na ],
		      NON-LOCAL.SLASH.LIST < #local > ] ].

; ERB 2004-05-05 Allow modifiers to attach to things with
; non-empty comps lists.  The head-mod-phrase will pass up
; the COMPS requirement, whatever it was.

head-mod-phrase := head-nexus-phrase &
  [ SYNSEM [ LOCAL.CAT.VAL [ SUBJ #subj,
                             SPR #spr,
                             COMPS #comps ],
             MODIFIED hasmod ],
    HEAD-DTR.SYNSEM [ LOCAL.CAT.VAL [ SUBJ #subj,
                                      SPR #spr,
                                      COMPS #comps ],
                      NON-LOCAL [ REL 0-dlist ] ] ].

basic-extracted-adj-phrase := head-mod-phrase & head-only & phrasal.

extracted-adj-phrase := basic-extracted-adj-phrase &
  [ SYNSEM [ LOCAL.CAT [ POSTHEAD #ph,
                         MC #mc ],
	     NON-LOCAL.SLASH 1-dlist &
		   <! [ CAT [ POSTHEAD +,
                              HEAD [ MOD < [ LOCAL intersective-mod &
                                                   [ CAT [ HEAD #head,
                                                           VAL #val,
                                                           POSTHEAD #ph,
                                                           MC #mc ],
                                                     CONT.HOOK #hook,
                                                     CTXT #ctxt ] ] > ],
                              VAL [ SUBJ olist,
                                    COMPS olist,
                                    SPR olist ] ] ] !> ],
    HEAD-DTR.SYNSEM canonical-synsem &
	   [ LOCAL local &
		   [ CAT [ HEAD #head,
                           VAL #val & [ SUBJ < synsem-min &
                                               [ NON-LOCAL.SLASH 0-dlist ] > ],
			   POSTHEAD #ph,
                           MC #mc ],
                     CONT.HOOK #hook,
                     CTXT #ctxt ],
             NON-LOCAL.SLASH 0-dlist,
	     MODIFIED notmod ],
    C-CONT [ HOOK #hook,
	     HCONS <! !> ] ].

; ERB 2004-05-10 Bug fix: non-head daughter's MOD..LIGHT value should
; be matched to head-daughters LIGHT value.
; ASF (2008-11-03) for the v2 analysis, the MC feature cannot be shared between
; mother and non-head-daughter, token-identity removed


basic-head-mod-phrase-simple := head-mod-phrase & binary-headed-phrase &
  [ SYNSEM [ NON-LOCAL [ SLASH [ LIST #first,
				 LAST #last ],
			 REL 0-dlist ] ],
    HEAD-DTR.SYNSEM 
           [ LOCAL [ CAT [ HEAD #head,
                           VAL #val,
                           POSTHEAD #ph,
                           MC #hmc ],
                     AGR #agr,
                     CONT.HOOK #hdhook ],
             NON-LOCAL #nonloc &
                   [ SLASH [ LIST #middle,
                             LAST #last ] ],
	     LIGHT #light,
             MODIFIED #modif ],
    NON-HEAD-DTR.SYNSEM 
           [ LOCAL.CAT [ HEAD [ MOD < [ LOCAL local & 
                                              [ CAT [ HEAD #head,
                                                      VAL #val,
                                                      POSTHEAD #ph,
                                                      MC #hmc ],
                                                AGR #agr,
                                                CONT.HOOK #hdhook ],
                                        NON-LOCAL #nonloc,
					LIGHT #light,
                                        MODIFIED #modif ] > ],
                         VAL [ COMPS olist,
                               SPR olist ] ],
             NON-LOCAL [ SLASH [ LIST #first,
                                 LAST #middle ],
                         QUE 0-dlist & [ LIST null ] ] ],
    C-CONT.RELS <! !> ].

head-mod-phrase-simple := basic-head-mod-phrase-simple &
  [ HEAD-DTR.SYNSEM.LOCAL.CONT.HOOK.LTOP #htop,
    NON-HEAD-DTR.SYNSEM.LOCAL.CAT.HEAD.MOD < [ LOCAL.CONT.HOOK.LTOP #htop ] >].

adj-head-phrase := basic-head-mod-phrase-simple & head-final &
  [ SYNSEM [ LOCAL.CAT.POSTHEAD #ph,
	     MODIFIED lmod & [ PERIPH #periph ],
             LIGHT #light ],
    HEAD-DTR.SYNSEM [ LOCAL.CAT.POSTHEAD #ph,
                      LIGHT #light ],
    NON-HEAD-DTR.SYNSEM [ LOCAL.CAT [ VAL.COMPS < > ],
			  NON-LOCAL [ SLASH 0-dlist,
				      REL 0-dlist ],
                          MODIFIED.PERIPH #periph ] ].

head-adj-phrase := basic-head-mod-phrase-simple & head-initial & phrasal &
  [ SYNSEM [ LOCAL.CAT.POSTHEAD +,
	     MODIFIED rmod ],
    HEAD-DTR.SYNSEM.MODIFIED notmod-or-rmod,
    NON-HEAD-DTR.SYNSEM [ LOCAL.CAT.POSTHEAD +,
			  NON-LOCAL.QUE 0-dlist ] ].

; We split head-adj-phrase and adj-head-phrase into two each,
; one for intersective modifiers and one for scopal modifiers, in order to
; get desired results for recursive modification as in "apparently difficult
; problem" (cf. Kasper '98).  This split is also used in generation, where
; we delay construction of intersective modification, but not scopal.

scopal-mod-phrase := head-mod-phrase-simple &
  [ NON-HEAD-DTR.SYNSEM.LOCAL [ CAT.HEAD.MOD < [ LOCAL scopal-mod ] >,
                                CONT.HOOK #hook ],
    C-CONT [ HOOK #hook,
             HCONS <! !> ] ].

; ERB 2004-05-18 I'm guessing that MSG no-msg on the head
; daughter here is going to turn out too restrictive for other
; languages.  

; ERB 2007-01-21 The option to say MSG no-msg is no longer available.
; But, it's probably less necessary, since we'll have fewer non-branching
; rules?

isect-mod-phrase := head-mod-phrase-simple & head-compositional &
  [ HEAD-DTR.SYNSEM.LOCAL.CONT [ HOOK.LTOP #hand ],
    NON-HEAD-DTR.SYNSEM.LOCAL [ CAT.HEAD.MOD < [ LOCAL intersective-mod ] >,
				CONT.HOOK.LTOP #hand ],
    C-CONT.HCONS <! !> ].

adj-head-scop-phrase := adj-head-phrase & scopal-mod-phrase & binary-rule-left-to-right &
  [ NON-HEAD-DTR.SYNSEM.LOCAL.CAT.POSTHEAD - ].
head-adj-scop-phrase := head-adj-phrase & scopal-mod-phrase & binary-rule-right-to-left &
  [ NON-HEAD-DTR.SYNSEM.NON-LOCAL.REL 0-dlist ].
adj-head-int-phrase := adj-head-phrase & isect-mod-phrase & 
  [ NON-HEAD-DTR.SYNSEM.LOCAL.CAT [ POSTHEAD - ] ].
head-adj-int-phrase := head-adj-phrase & isect-mod-phrase.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 
;;
;;  Lexical types
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

; Lexical entries will be cross-classified along many dimensions,
; including:
;
; -- Whether or not they introduce non-empty non-local feature values
; -- Amalgamation of non-local features
; -- Whether or not they are fully inflected as listed
;     in the lexicon.
; -- Part of speech (and associated semantic generalizations)
; -- Subcategorization
; -- Values for the HOOK features
;
; On the first three dimensions, the vast majority of words will
; actually follow the general pattern.  In order to facilitate the
; definition of types (in particular grammars) for those cases that
; don't, the constraints are stated on separate types.  Additional
; types can be created as required by inheriting from all of the types
; that are still relevant.  This is clearly an area to investigate
; the use of defaults, as we learn more about best practice concerning
; their use.
;
; Note that we don't treat these dimensions as entirely independent
; of each other, but rather hope to strike a balance between flexibility
; and redundancy. 
;
; We are currently avoiding any development within the Matrix of the
; subhierarchy under head (see notes at the definition of type head
; above), believing that the exact geometry of that hierarchy to be
; somewhat language dependent.  Thus, even the types for the part of
; speech dimension will not specify head values, and will need to be
; specialized in particular grammars to do so.  Furthermore, the
; subcategorization types will specify only the number of syntactic
; arguments and their linking to the semantic relations.

; Update: 2004-08-26 We have devised a means of adding in a subhierarchy
; under head without prejudging the disjunctive types needed.  Therefore,
; the part of speech types will now specify HEAD values.  Nonetheless,
; the HEAD values of arguments are left underspecified, as that does
; vary across languages.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; HOOK feature values

; LKEYS.KEYREL is a short-cut to the relation that is going to
; contribute the LTOP and INDEX for the word, such that linking
; types and lexical entries don't have to refer to a specific position
; on the RELS list.

norm-ltop-lex-item := lex-item &
  [ SYNSEM [ LOCAL.CONT [ HOOK [ LTOP #ltop ],
                          RELS.LIST.FIRST #keyrel ],
             LKEYS.KEYREL #keyrel & [ LBL #ltop ] ] ].

norm-hook-lex-item := norm-ltop-lex-item &
  [ SYNSEM [ LOCAL.CONT.HOOK.INDEX #index,
             LKEYS.KEYREL.ARG0 #index ] ].

; ERB 2007-02-26 For modifiers. Elements that have a double life
; as attributive and predicative become tricky.  Attributive adjectives
; and PPs should be raise-index-mod-lex-item, while predicative
; ones should be norm-hook-lex-item. But how to relate the two?
; Also, reconsider whether I want to do this for intersective as
; well as scopal modifiers, or just the scopal guys.

raise-index-mod-lex-item := norm-ltop-lex-item 
  [ SYNSEM.LOCAL [ CAT.HEAD.MOD < [ LOCAL.CONT.HOOK.INDEX #index ] >,
		   CONT.HOOK.INDEX #index ] ].


; Furthermore, most lexical items contribute only one relation, and
; have empty HCONS values.

single-rel-lex-item := lex-item &
  [ SYNSEM.LOCAL.CONT.RELS <! relation !> ].

no-hcons-lex-item := lex-item & 
  [ SYNSEM.LOCAL.CONT.HCONS <! !> ].

; ERB 2005-05-11 Normal lex items don't introduce messages. 
; Since I'm trying out an analysis where the no-msg-phrases
; copy of MSG values, need to bottom out in MSG no-msg
; on most lex items.

; ERB 2007-01-21 No more messages.

;no-msg-lex-item := lex-item &
; [ SYNSEM.LOCAL.CONT.MSG no-msg ].

; ERB 2007-01-22 Removing no-hcons-lex-item here, since now
; there are many words which introduce hcons (in the absence of
; messages). HCONS should now (in most cases) be constrained
; by the linking types.

norm-sem-lex-item := norm-hook-lex-item & single-rel-lex-item. 

hcons-lex-item := norm-hook-lex-item & single-rel-lex-item.

; ERB 2005-08-07 For lexical items like case-marking adpositions
; and auxiliaries which only contribute tense/aspect information.
; These all take HOOK from their first complements.

raise-sem-lex-item := no-hcons-lex-item & 
  [ SYNSEM.LOCAL [ CONT [ RELS <! !>,
			  HOOK #hook ],
		   CAT.VAL.COMPS < [ LOCAL.CONT.HOOK #hook ] , ... > ]].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; inflected v. uninflected

uninflected-lexeme := lex-item &
  [ INFLECTED - ].

fully-inflected-lexeme := lex-item &
  [ INFLECTED + ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Non-local features: Values and amalgamation

; Not all of the non-local features will necessarily be useful in
; all languages.  SLASH is for `topicalization' style long distance
; dependencies.  REL and QUE are used in the analysis of pied piping
; in relative clauses and questions respectively, and also to signal
; the presence of a question element in in-situ questions so that
; clausal constructions with question semantics can require the presence
; of a question word.

; basic_zero_arg lexical items have empty ARG-ST lists.  They may
; introduce a non-empty value for one of the non-local features.

basic-zero-arg := lex-item &
  [ ARG-ST < > ].

zero-arg-nonslash := lex-item &
  [ SYNSEM.NON-LOCAL.SLASH 0-dlist ].

zero-arg-nonrel : = lex-item &
  [ SYNSEM.NON-LOCAL.REL 0-dlist ].

zero-arg-nonque : = lex-item &
  [ SYNSEM.NON-LOCAL.QUE 0-dlist ].

; Non-argument taking items which introduce no non-local values.

norm-zero-arg := zero-arg-nonslash & zero-arg-nonrel & zero-arg-nonque.

; Items introducing a rel value.

zero-arg-rel := zero-arg-nonslash & zero-arg-nonque.

; Items introducing a que value.
; ERB 2004-05-24 Bug fix: This was inheriting from zero-arg-nonque
; instead of zero-arg-nonrel.

zero-arg-que := zero-arg-nonslash & zero-arg-nonrel.

; Items introducing a slash value, e.g., resumptive pronouns in French.

zero-arg-slash := zero-arg-nonrel & zero-arg-nonque.

; These non-zero argument types only amalgamate the non-local
; feature values of their complements.  They do not introduce any
; non-local values of their own, nor do they bind off any non-local
; feature values.  This assumes that the bottom of most long-distance
; dependencies is handles by a rule that constrains an argument (either
; on the ARG-ST list or a valence list) to be a synsem of type gap.
; Elements like English tough adjectives which bind off a slash value
; will need a new type that doesn't amalgamate that slash value.
; Elements which both introduce REL or QUE values and take one or
; more arguments will require appropriate new types as well, which
; amalgamate everything but add a value in addition.

basic-one-arg := lex-item &
  [ ARG-ST < [ NON-LOCAL [ SLASH #slash,
			   REL #rel,
			   QUE #que ] ] >,
    SYNSEM.NON-LOCAL [ SLASH #slash,
		       REL #rel,
		       QUE #que ] ].

basic-two-arg := lex-item &
  [ ARG-ST < [ NON-LOCAL [ SLASH [ LIST #smiddle,
				   LAST #slast ],
			   REL [ LIST #rmiddle,
				 LAST #rlast ],
			   QUE [ LIST #qmiddle,
				 LAST #qlast ] ] ],
	     [ NON-LOCAL [ SLASH [ LIST #sfirst,
				   LAST #smiddle ],
			   REL [ LIST #rfirst,
				 LAST #rmiddle ],
			   QUE [ LIST #qfirst,
				 LAST #qmiddle ] ] ] >,
    SYNSEM.NON-LOCAL [ SLASH [ LIST #sfirst,
			       LAST #slast ],
		       REL [ LIST #rfirst,
			     LAST #rlast ],
		       QUE [ LIST #qfirst,
			     LAST #qlast ] ] ].

basic-three-arg := lex-item &
  [ ARG-ST < [ NON-LOCAL [ SLASH [ LIST #smiddle2,
				   LAST #slast ],
			   REL [ LIST #rmiddle2,
				 LAST #rlast ],
			   QUE [ LIST #qmiddle2,
				 LAST #qlast ] ] ],
	     [ NON-LOCAL [ SLASH [ LIST #sfirst,
				   LAST #smiddle1 ],
			   REL [ LIST #rfirst,
				 LAST #rmiddle1 ],
			   QUE [ LIST #qfirst,
				 LAST #qmiddle1 ] ] ],
	     [ NON-LOCAL [ SLASH [ LIST #smiddle1,
				   LAST #smiddle2 ],
			   REL [ LIST #rmiddle1,
				 LAST #rmiddle2 ],
			   QUE [ LIST #qmiddle1,
				 LAST #qmiddle2 ] ] ] >,
    SYNSEM.NON-LOCAL [ SLASH [ LIST #sfirst,
			       LAST #slast ],
		       REL [ LIST #rfirst,
			     LAST #rlast ],
		       QUE [ LIST #qfirst,
			     LAST #qlast ] ] ].

; ERB 2007-01-22  In the message-free universe, many more qeqs are
; introduced by lexical items (basically any head that selects a clausal
; complement).  To facilitate this, I'm going to move the no-hcons
; distinction to the linking types part of the hierarchy (and out of
; the pos part of the hierarchy).  In this connection, it's useful
; to have subtypes of basic-n-arg which inherit from no-hcons-lex-item.

basic-one-arg-no-hcons := basic-one-arg & no-hcons-lex-item.
basic-two-arg-no-hcons := basic-two-arg & no-hcons-lex-item.
basic-three-arg-no-hcons := basic-three-arg & no-hcons-lex-item.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Subcategorization/linking

; These types specify the number of syntactic arguments, a relation
; type, and the relationship between the syntactic arguments and the
; relation type.  They inherit from the amalgamation types above,
; since we believe that the need for cross-classification across these
; two dimensions is minimal.  That is, words which do something other
; than simply amalgamate the non-local feature values of their
; arguments probably have quirky subcategorization frames as well.

; It is expected that further types will need to be defined in 
; every particular grammar, but these types should cover the vast
; majority of open-class lexical items, and assist with some closed-class
; items as well.

; As explained above, we are leaving the HEAD values of the syntactic
; arguments underspecified as there are cross-linguistic differences
; in the part of speech of arguments in otherwise similar
; subcategorization types: English transitive verbs select two NPs.
; Japanese transitives select two PPs, as the case particles are
; treated as postpositions.

; We will, however, specify the semantic type of arguments, since it
; is relevant to the semantic constraints associated with each lexical
; item.  Clausal-argument taking elements identify the LTOP of their
; complement with an ARGn position, rather than the INDEX.  (Even
; though handles are involved here, we do identification rather than a
; relationship mediated by HCONS because the messages already leave
; enough room for quantifiers to scope at the top of the embedded
; clause, and scope ambiguities between quantifiers and messages would
; be meaningless.)  Subordinating conjunctions will have even more
; to say semantically.

; We are also leaving underspecified the mapping from ARG-ST to
; valence features.  The phrase structure rules assume one particular
; inventory of valence features (SPR, SUBJ, COMPS), but the exact
; deployment of those features might be language-specific (e.g.,
; in syntactically ergative languages).  NB: The phrase structure
; rules differentiate SPR and SUBJ in that SPR is treated as the
; semantic head.

; By hypothesis, the order of the syntactic arguments on the ARG-ST
; list corresponds to the order of the semantric arguments ARGn, with
; the caveat that not all syntactic arguments are also semantic
; arguments, as in constructions involving expletives or raising.  The
; ARGn features do not correspond to theta roles but rather should
; have their interpretation specified in the Sem-I, where the
; interpretations of each ARGn will be relative to (classes of)
; predicates.  Nonetheless, we expect the order of elements on the
; ARG-ST list follow a thematic role or grammatical function hierarchy
; in underived lexical items.  This order may be perturbed by lexical
; rules.  In addition, there are degrees of freedom allowed by the
; mapping from ARG-ST to the valence features and the possibility of
; scrambling by realizing elements of a valence list "out of order".

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; For verbs, adjectives and nouns that don't require specifiers


; Kim is tired, Kim sleeps, Kim is in the park, Kim is a student.
; Kim ga nemui, Kim ga neru.
; Kim est fatigue, Kim dors, Kim est a la maison, Kim est etudiant.

; (Kim is a student requires an analysis of predicative NPs.)

intransitive-lex-item := basic-one-arg-no-hcons & 
  [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind ] >,
    SYNSEM.LKEYS.KEYREL.ARG1 #ind ].

; It rains.
; Il pleut.

expl-arg-only-lex-item := basic-one-arg-no-hcons &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX expl-ind ] > ].

; Kim eats lunch.  Kim is fond of apples.
; Kim ga hiru gohan wo taberu.  
; Kim mange le dejeuner.  

transitive-lex-item := basic-two-arg-no-hcons &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind1 ],
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind2 ] >,
     SYNSEM.LKEYS.KEYREL [ ARG1 #ind1,
			   ARG2 #ind2 ] ].

; Kim gives Sandy a book.
; Kim ga Sandy ni hon wo ageru.
; Kim donne un livre a Sandy.

ditransitive-lex-item := basic-three-arg-no-hcons &
  [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind1 ],
	     [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind2 ],
	     [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind3 ] >,
    SYNSEM.LKEYS.KEYREL [ ARG1 #ind1,
			  ARG2 #ind2,
			  ARG3 #ind3 ] ].

; That Kim sleeps is obvious.
; [NB: This is just one possible analysis of clausal subjects.
;  in English, a non-branching NP -> CP rule is also plausible.
;  We are interested in arguments from other languages supporting
;  one analysis or the other.]

; ERB 2007-01-22 Inserting qeqs now that we no longer have messages
; intervening.

clausal-arg-intrans-lex-item := basic-one-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.LTOP #larg ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #harg ] ] ]. 

; That Kim sleeps surprises Sandy.

; ERB 2007-01-22 Inserting qeqs now that we no longer have messages
; intervening.


clausal-first-arg-trans-lex-item := basic-two-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.LTOP #larg ],
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #harg,
			     ARG2 #ind ] ] ].

; Sandy believes that Kim sleeps.
; Sandy ga Kim ga neru to shinjita.
; Sandy croit que Kim dors.

; ERB 2007-01-22 Inserting qeqs now that we no longer have messages
; intervening.

clausal-second-arg-trans-lex-item := basic-two-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind ],
	      [ LOCAL.CONT.HOOK.LTOP #larg ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind,
			     ARG2 #harg ] ] ].

; Kim told Sandy that Pat slept.
; Kim ga Sandy ni Pat ga neta to itta.
; Kim a dit a Sandy que Pat dormait.

; ERB 2007-01-22 Inserting qeqs now that we no longer have messages
; intervening.

clausal-third-arg-ditrans-lex-item := basic-three-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind1 ],
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind2 ],
	      [ LOCAL.CONT.HOOK.LTOP #larg ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind1,
			     ARG2 #ind2,
			     ARG3 #harg ] ] ].

; It is obvious that Kim sleeps.  
; Il est evident que Kim dors.

; (Many of these might be generated via a lexical rule from
; clausal-arg-intrans-lex-items, but some probably don't alternate).


; ERB 2007-01-22 Inserting qeqs now that we no longer have messages
; intervening.

clausal-expl-arg-lex-item := basic-two-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX expl-ind ],  
	      [ LOCAL.CONT.HOOK.LTOP #larg ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #harg ] ] ].

; Kim seems to sleep; Kim is sleeping.

trans-first-arg-raising-lex-item := basic-two-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX #ind ],
	      [ LOCAL.CONT.HOOK.XARG #ind ] > ].

; Variant expecting a relation introduced by the raising
; predicate.  Adding qeq between ARG1 and LTOP.  Can't
; cross-classify with norm-sem-lex-item.

; These can't inherit from basic-verb-lex, since they
; introduce a non-empty HCONS value.  Need to get 
; event-relation from somewhere else.

; ERB (2007-02-20) They should be able to now that things
; are de-messaged, since basic-verb-lex no longer inherits
; from no-hcons-lex-item.

trans-first-arg-raising-lex-item-1 := trans-first-arg-raising-lex-item & 
   [ ARG-ST < [ ],
	      [ LOCAL.CONT.HOOK.LTOP #larg ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & 
				[ HARG #harg,
				  LARG #larg ] !>,
	      LKEYS.KEYREL event-relation & 
			       [ ARG1 #harg ]]].

; Variant for raising verbs/auxiliaries which don't
; introduce a predicate of their own. 

trans-first-arg-raising-lex-item-2 := trans-first-arg-raising-lex-item &
				      raise-sem-lex-item.

; Kim tries to sleep.

; ERB 2007-01-22 Adding in qeq here.


trans-first-arg-control-lex-item := basic-two-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind ],
	      [ LOCAL.CONT.HOOK [ XARG #ind,
				  LTOP #larg ] ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind,
			     ARG2 #harg ] ] ].

; Kim appeared to Sandy to leave, Kim seems to Sandy to have left.
; (Treat "Kim seems happy to Sandy" as derived in some way?)

; ERB 2007-01-22 Adding in qeq here.

ditrans-first-arg-raising-lex-item := basic-three-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX #ind1 ],
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind2 ],
	      [ LOCAL.CONT.HOOK [ XARG #ind1,
				  LTOP #larg ] ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind2,
			     ARG2 #harg ] ] ].


; Kim promised Sandy to leave. 

; ERB 2007-01-22 Adding in qeq here.

ditrans-first-arg-control-lex-item := basic-three-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind1 ],
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind2 ],
	      [ LOCAL.CONT.HOOK [ XARG #ind1,
				  LTOP #larg ] ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind1,
			     ARG2 #ind2,
			     ARG3 #harg ] ] ].

; Kim believed Sandy to have left.

; ERB 2007-01-22 Adding in qeq here.

distrans-second-arg-raising-lex-item := basic-three-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind1 ],
	      [ LOCAL.CONT.HOOK.INDEX #ind2 ],
	      [ LOCAL.CONT.HOOK [ XARG #ind2,
				  LTOP #larg ] ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind1,
			     ARG2 #harg ] ] ].

; Kim appealed to Sandy to leave.			     

; ERB 2007-01-22 Adding in qeq here.

ditrans-second-arg-control-lex-item := basic-three-arg &
   [ ARG-ST < [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind1 ],
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind2 ],
	      [ LOCAL.CONT.HOOK [ XARG #ind2,
				  LTOP #larg ] ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind1,
			     ARG2 #ind2,
			     ARG3 #harg ] ] ].
	                     

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; For nouns requiring specifiers, adjectives taking degree specifiers, etc.

; Keep specifiers on ARG-ST because amalgamation constraints are
; stated there.  Also, in the eventual hope of implementing
; a binding theory, which seems to need to take account of possessor
; nouns in picture NPs (Runner et al 2004).

; a dog, Kim's dog

; The specifier does not play a semantic role in the 'dog' relation,
; so there is nothing more to say: these can just inherit from
; basic-one-arg and no-hcons-lex-item, and not link in that one
; argument.  The head-spec rule identifies the head's HOOK with the
; SPEC..HOOK of the specifier, which gives the specifier access to the
; noun's index for linking purposes.

; a book about dogs
; very fond of apples

spr-plus-one-arg-lex-item := basic-two-arg-no-hcons &
   [ ARG-ST < synsem, 
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind ] >,
     SYNSEM.LKEYS.KEYREL.ARG1 #ind ].

; the claim that Sandy slept.
; very happy that Sandy slept

; ERB 2007-01-22 Adding qeq in here.

spr-plus-clausal-arg-lex-item := basic-two-arg &
   [ ARG-ST < synsem, 
	      [ LOCAL.CONT.HOOK.LTOP #larg ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL.ARG1 #harg ] ].

; Whether or not we need more types here is going to largely depend
; on whether we treat deverbal nouns semantically as nominalizations,
; and how we handle the linking in that case.  Leave this for later.

; Kim is very eager to sleep.
; How eager to sleep is Kim?

; ERB 2007-01-22 Adding qeq in here.

spr-trans-first-arg-control-lex-item := basic-three-arg &
   [ ARG-ST < synsem,
	      [ LOCAL.CONT.HOOK.INDEX ref-ind & #ind ],
	      [ LOCAL.CONT.HOOK [ XARG #ind,
				  LTOP #larg ] ] >,
     SYNSEM [ LOCAL.CONT.HCONS <! qeq & [ HARG #harg,
					  LARG #larg ] !>,
	      LKEYS.KEYREL [ ARG1 #ind,
			     ARG2 #harg ] ] ].

; Possibly more types related to the above.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Modifiers

; Modifiers which can be used either attributively or predicatively 
; identify their XARG with their MOD..IND, so that the modified element
; or the subject play the same role.  Assume other constraints will block
; a modifier from picking up a subject (in the ERG, this is done by
; not giving them any SUBJ ever, since adjectives and PPs require
; the support of the copula to function as predicates; in a language
; which doesn't use the copula in these contexts, something else would
; need to be done.

attrib-or-pred-lex-item := lex-item &
  [ SYNSEM.LOCAL [ CAT.HEAD.MOD.FIRST.LOCAL.CONT.HOOK.INDEX #ind,
		   CONT.HOOK.XARG #ind ] ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Part of speech

; These types are meant to cross-classify with the above, but
; many closed-class items have linking constraints which are particular
; to the part of speech class, and so some linking constraints are
; included.

; Bringing in norm-sem-lex-item here where relevant, although this
; might be too stringent.

; ERB 2006-10-05 Temporarily constraining INDEX.MESG to be
; prop-or-ques.  This will need to be revisited if we're going to 
; allow commands, but look at what ERG does first.

; ERB 2007-01-21 Moving to constructionally introduced SF values.
; Removing that constraint on now defunct feature MESG.

basic-verb-lex := norm-sem-lex-item & 
  [ SYNSEM [ LOCAL.CAT.HEAD verb,
	     LKEYS.KEYREL event-relation ]].

; ERB 2004-08-26 Put in qeq, assuming that for all scopal modifiers
; the relevant argument position is ARG1, and there will be
; no further handle constraints.  The latter especially may be
; too strong.

; Adpositions and adjectives (also adverbs, somewhere?) may
; have additional arguments, but the modified element is assumed
; to always be the ARG1.  These types should be cross-classified
; with argument structure types appropriate to their combinatoric
; potential.

scopal-mod-lex := lex-item &
  [ SYNSEM [ LOCAL [ CAT.HEAD.MOD < [ LOCAL scopal-mod &
					    [ CONT.HOOK.LTOP #larg ]] >,
		     CONT.HCONS <! qeq & 
				 [ HARG #harg,
				   LARG #larg ] !> ],
	     LKEYS.KEYREL.ARG1 #harg ]].

intersective-mod-lex := no-hcons-lex-item &
  [ SYNSEM [ LOCAL.CAT.HEAD.MOD < [ LOCAL intersective-mod & 
					  [ CONT.HOOK.INDEX #ind ]] >,
	     LKEYS.KEYREL.ARG1 #ind ] ].

no-mod-lex := no-hcons-lex-item &
  [ SYNSEM.LOCAL.CAT.HEAD.MOD < > ].

basic-adjective-lex := single-rel-lex-item &
  [ SYNSEM [ LOCAL.CAT.HEAD adj,
	     LKEYS.KEYREL event-relation ]].

; ERB 2007-02-26 New type raise-index-mod-lex-item to get the
; INDEX value right on modifiers.  Attributive adjectives should
; inherit from this one, predicatives from norm-hook-lex-item.
; Need to worry about the relationship between the two.

basic-mod-adj-lex := basic-adjective-lex & raise-index-mod-lex-item.
basic-scopal-mod-adj-lex := basic-mod-adj-lex & scopal-mod-lex.
basic-int-mod-adj-lex := basic-mod-adj-lex & intersective-mod-lex.
basic-nomod-adj-lex := basic-adjective-lex & no-mod-lex & norm-hook-lex-item.

basic-adposition-lex := single-rel-lex-item &
  [ SYNSEM [ LOCAL.CAT.HEAD adp,
	     LKEYS.KEYREL event-relation ]].

basic-mod-adp-lex := basic-adposition-lex & raise-index-mod-lex-item.
basic-scopal-mod-adposition-lex := basic-mod-adp-lex & scopal-mod-lex.
basic-int-mod-adposition-lex := basic-mod-adp-lex & intersective-mod-lex.
basic-nomod-adposition-lex := basic-adposition-lex & no-mod-lex & norm-hook-lex-item.

basic-adverb-lex := raise-index-mod-lex-item & single-rel-lex-item &
  [ SYNSEM [ LOCAL.CAT.HEAD adv,
	     LKEYS.KEYREL event-relation ]].

basic-scopal-adverb-lex := basic-adverb-lex & scopal-mod-lex.
basic-int-adverb-lex := basic-adverb-lex & intersective-mod-lex.

; Anticipate subtypes of basic-noun-lex for common nouns,
; proper nouns, and pronouns.  All are treated as norm-sem-lex-item
; (i.e., only introducing a single relation, and no H-CONS).  One
; might think otherwise based on canonical examples from familiar
; languages in which pronouns and proper nouns don't have determiners.
; However, even in languages like English, we find examples like
; "The Kim that I know is younger than the one that you know."
; So, rather than build the quantifier for proper nouns/pronouns
; into the lexical entry, use (potentially obligatory) non-branching
; rules to introduce the quantifier and discharge the SPR requirement.

basic-noun-lex := norm-sem-lex-item & 
  [ SYNSEM [ LOCAL.CAT.HEAD noun,
	     LKEYS.KEYREL noun-relation ]].

; Note the use of the feature SPEC in basic-determiner-lex.
; This is important semantically to allow the determiner to grab
; onto the INDEX and LTOP of the N' it combines with.  Elsewhere
; in the lexical types we have avoided mentioning the valence features,
; believing the mapping from ARG-ST to valence features to be somewhat
; language-specific.  In this case, however, it does not concern
; a mapping to ARG-ST.

basic-determiner-lex := norm-hook-lex-item &
  [ SYNSEM [ LOCAL [ CAT [ HEAD det,
			   VAL.SPEC.FIRST.LOCAL.CONT.HOOK [ INDEX #ind,
							    LTOP #larg ]],
		     CONT [ HCONS <! qeq &
				   [ HARG #harg,
				     LARG #larg ] !>,
			    RELS <! relation !> ] ],
	     LKEYS.KEYREL quant-relation &
		   [ ARG0 #ind,
		     RSTR #harg ] ] ].

; Subordinating conjunctions take two clauses, one as an argument
; (i.e., element of ARG-ST) and one as modifiee.  We allow quantifiers
; to scope between the messages of the clauses and the subord-relation
; in order to capture the ambiguity of:

; No one drinks coffee because it tastes good.

; We are interested in examples from languages where the analogous
; sentence is not analogously ambiguous.

; No hypothesis yet about the HEAD value of these cross-linguistically.

; ERB 2007-01-21 Quickly trying to bring this into the non-message
; universe.  I'm not sure why we needed space bewteen the subord-relation
; and the messages, nor if the equivalent thing can't be modeled without
; messages.  Isn't enough for the quantifiers to be able to out-scope
; the subord-relation?

; basic-subord-conjunction-lex := basic-one-arg &
;   [ ARG-ST < [ LOCAL.CONT.HOOK.LTOP #ltop1 ] >,
;     SYNSEM [ LOCAL [ CAT.HEAD.MOD < [ LOCAL.CONT.HOOK.LTOP #ltop2 ] >,
; 		     CONT [ HCONS <! qeq &
; 				   [ HARG #harg,
; 				     LARG #larg ] !>,
; 			    RELS <! relation,
; 				  message & 
; 				  [ LBL #msg,
; 				    PRED proposition_m_rel,
; 				    MARG #harg ] !>,
; 			    HOOK [ LTOP #msg ] ] ],
; 	     LKEYS.KEYREL subord-relation &
; 		   [ LBL #larg,
; 		     L-HNDL #ltop1,
; 		     R-HNDL #ltop2 ] ] ].


basic-subord-conjunction-lex := basic-one-arg &
  [ ARG-ST < [ LOCAL.CONT.HOOK.LTOP #ltop1 ] >,
    SYNSEM [ LOCAL [ CAT.HEAD.MOD < [ LOCAL.CONT.HOOK.LTOP #ltop2 ] >,
		     CONT [ HCONS <! !>,
			    RELS <! relation !>,
			    HOOK [ LTOP #ltop ] ] ],
	     LKEYS.KEYREL subord-relation &
		   [ LBL #ltop,
		     L-HNDL #ltop1,
		     R-HNDL #ltop2 ] ] ].



; Coming soon:
; Lexical type for negative particles like English "not"
; Lexical type for WH elements
; Documentation listing the phenomena handled by these lexical types.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Coordination (added by sfd 08/02/2005)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Two relations used in coordination:
;
; implicit-coord-rel: used when there's no overt conjunction (or
; morpheme) providing the coordination relation.
;
; null-coord-rel: used when a conjunction contributes *no* relation.

implicit-coord-rel := coordination-relation &
  [ PRED 'implicit_coord_rel ].
null-coord-rel := coordination-relation &
  [ PRED 'null_coord_rel ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Conjunction parts of speech

conj-lex := basic-zero-arg & single-rel-lex-item & no-hcons-lex-item &
  [ CFORM string,
    SYNSEM [ LOCAL [ CAT [ HEAD conj & [ MOD null ],
                           VAL [ SPR < >,
                                 COMPS < >,
                                 SUBJ < > ]],
                     CONT [ HOOK [ LTOP #ltop,
                                   INDEX #index ],
                            RELS.LIST.FIRST #keyrel ]],
             LKEYS.KEYREL #keyrel & coordination-relation & [ LBL #ltop,
                                                              C-ARG #index ]]].

; A nosem-conj-lex is a conjunction that contributes no relation.
; Used below in "omnisyndeton" coordination.

nosem-conj-lex := basic-zero-arg & no-hcons-lex-item &
  [ SYNSEM [ LOCAL [ CAT [ HEAD conj & [ MOD null ],
                           VAL [ SPR < >,
                                 COMPS < >,
                                 SUBJ < > ]],
                     CONT.RELS <! !> ]]].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Coordination phrases and rules

coord-phrase := binary-phrase &
  [ SYNSEM.LOCAL [ COORD-STRAT #cstrat,
                   CAT [ HEAD.MOD #mod,
                         VAL #val ]],
    LCOORD-DTR #ldtr & sign & [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                                                     VAL #val ]]],
    RCOORD-DTR #rdtr & sign & [ SYNSEM.LOCAL [ COORD-STRAT #cstrat,
                                               CAT [ HEAD.MOD #mod,
                                                     VAL #val ]]],
    ARGS < #ldtr, #rdtr > ].

topormid-coord-phrase := coord-phrase &
  [ C-CONT.HOOK [ LTOP #lbl, INDEX #carg ],
    LCOORD-DTR.SYNSEM.LOCAL.CONT.HOOK.INDEX #lind,
    RCOORD-DTR.SYNSEM.LOCAL [ COORD-REL [ LBL #lbl,
                                          C-ARG #carg,
                                          L-INDEX #lind,
                                          R-INDEX #rind ],
                              CONT.HOOK.INDEX #rind ]].

top-coord-rule := topormid-coord-phrase &
  [ SYNSEM.LOCAL.COORD - ].

mid-coord-rule := topormid-coord-phrase &
  [ SYNSEM.LOCAL [ COORD +,
                   COORD-REL implicit-coord-rel ]].

bottom-coord-phrase := phrase &
  [ CONJ-DTR sign,
    NONCONJ-DTR sign ].

unary-bottom-coord-rule := bottom-coord-phrase & unary-phrase &
  [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                         VAL #val ],
                   COORD +,
                   COORD-REL #crel ],
    C-CONT [ HOOK [ INDEX #rind ],
	     RELS <! #crel !>,
	     HCONS <! !> ],
    NONCONJ-DTR sign & #ncdtr,
    ARGS < #ncdtr & [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                                           VAL #val ],
                                     COORD -,
                                     CONT.HOOK [ INDEX #rind ]]] > ].

;;; ERB 2007-05-16 Note for sfd: There is probably a single type
;;; you could inherit from here that combines what you need.

infl-bottom-coord-rule := same-local-lex-rule &
                          same-non-local-lex-rule &
			  same-modified-lex-rule &
			  same-light-lex-rule &
                          inflecting-lex-rule &
  [ INFLECTED +,
    DTR.INFLECTED -,
    SYNSEM.LOCAL [ COORD +,
                   COORD-REL #crel ],
    C-CONT [ RELS <! #crel !>,
             HCONS <! !> ]].

binary-bottom-coord-rule := bottom-coord-phrase & binary-phrase &
  [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                         VAL #val ],
                   COORD +,
                   COORD-REL #crel,
                   COORD-STRAT #cform ],
    C-CONT [ HOOK [ INDEX #rind ],
	     RELS <! !>,
	     HCONS <! !> ],
    CONJ-DTR conj-lex & [ CFORM #cform,
                          SYNSEM.LKEYS.KEYREL #crel ],
    NONCONJ-DTR sign & [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                                              VAL #val ],
                                        COORD -,
                                        CONT.HOOK [ INDEX #rind ]]]].

conj-first-bottom-coord-rule := binary-bottom-coord-rule &
  [ CONJ-DTR #cdtr,
    NONCONJ-DTR #ncdtr,
    ARGS < #cdtr, #ncdtr > ].

conj-last-bottom-coord-rule := binary-bottom-coord-rule &
  [ CONJ-DTR #cdtr,
    NONCONJ-DTR #ncdtr,
    ARGS < #ncdtr, #cdtr > ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; *syndeton rules: Rules that describe the different kinds of marking
; strategies used for coordination in various languages.

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; monopoly*: Mandatory monosyndeton with optional polysyndeton.  This
; is the familiar Indo-European pattern, in which at least one
; coordinator is mandatory ("A B and C") and more than one is possible
; ("A and B and C").

monopoly-top-coord-rule := top-coord-rule &
  [ LCOORD-DTR.SYNSEM.LOCAL.COORD -,
    RCOORD-DTR.SYNSEM.LOCAL.COORD + ].

monopoly-mid-coord-rule := mid-coord-rule &
  [ LCOORD-DTR.SYNSEM.LOCAL.COORD -,
    RCOORD-DTR.SYNSEM.LOCAL.COORD + ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; apoly: These rules handle two coordination strategies:
;
; Asyndeton, in which no coordinators appear: "A B C".
;
; Polysyndeton, in which an N-way coordination is marked with  N-1
; coordinators:
;     "A and B and C", not "A B and C"
;
; For both of these, there is NO MID RULE.  The difference between
; them is captured in the bottom rule: asyndeton will have a unary
; (and non-inflecting) bottom rule.

apoly-top-coord-rule := top-coord-rule &
  [ LCOORD-DTR.SYNSEM.LOCAL.COORD -,
    RCOORD-DTR.SYNSEM.LOCAL.COORD + ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; omni: This handles a variety of polysyndeton, called here for
; clarity "omnisyndeton", in which for an N-way coordination, N
; coordinators are required:
;
;     "and A and B and C" or "A and B and C and".
;
; This coordination strategy requires a significantly approach than
; the others.  Rather than a single kind of bottom rule, there are two
; kinds.  The first kind, still called "bottom", handles the single
; lowest (rightmost) coordinand.  The other kind, called "left",
; handles all other coordinands (it's called "left" because it is
; always the left daughter of a top- or mid- rule).  Because there are
; N coordinators for N coordinands in this strategy, one of the
; conjunctions must contribute *no* coordination relation, or else
; we'd have too many.  The bottom rule is the exceptional one: it
; requires that its conjunction daughter be of type nosem-conj-lex.
;
; The mid- and top- rules are also slightly different from the other
; coordination strategies, in that they take the COORD-REL from the
; *left* daughter instead of the right.

omni-binary-bottom-coord-rule := bottom-coord-phrase & binary-phrase &
  [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                         VAL #val ],
                   COORD +,
                   COORD-REL null-coord-rel ],
    C-CONT [ HOOK [ INDEX #rind ],
	     RELS <! !>,
	     HCONS <! !> ],
    CONJ-DTR nosem-conj-lex,
    NONCONJ-DTR sign & [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                                              VAL #val ],
                                        COORD -,
                                        CONT.HOOK [ INDEX #rind ]]]].

omni-conj-first-bottom-coord-rule := omni-binary-bottom-coord-rule &
  [ CONJ-DTR #cdtr,
    NONCONJ-DTR #ncdtr,
    ARGS < #cdtr, #ncdtr > ].

omni-conj-last-bottom-coord-rule := omni-binary-bottom-coord-rule &
  [ CONJ-DTR #cdtr,
    NONCONJ-DTR #ncdtr,
    ARGS < #ncdtr, #cdtr > ].

omni-left-coord-rule := bottom-coord-phrase.

omni-binary-left-coord-rule := omni-left-coord-rule & binary-phrase &
  [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                         VAL #val ],
                   COORD -,
                   COORD-REL #crel ],
    C-CONT [ HOOK [ INDEX #rind ],
	     RELS <! !>,
	     HCONS <! !> ],
    CONJ-DTR conj-lex & [ SYNSEM.LKEYS.KEYREL #crel ],
    NONCONJ-DTR sign & [ SYNSEM.LOCAL [ CAT [ HEAD.MOD #mod,
                                              VAL #val ],
                                        COORD -,
                                        CONT.HOOK [ INDEX #rind ]]]].

omni-conj-first-left-coord-rule := omni-binary-left-coord-rule &
  [ CONJ-DTR #cdtr,
    NONCONJ-DTR #ncdtr,
    ARGS < #cdtr, #ncdtr > ].

omni-conj-last-left-coord-rule := omni-binary-left-coord-rule &
  [ CONJ-DTR #cdtr,
    NONCONJ-DTR #ncdtr,
    ARGS < #ncdtr, #cdtr > ].

;;; ERB 2007-05-16 Note for sfd: There is probably a single type
;;; you could inherit from here that combines what you need.


infl-left-coord-rule := omni-left-coord-rule &
			same-modified-lex-rule &
			same-light-lex-rule &
                        same-local-lex-rule &
                        same-non-local-lex-rule &
                        inflecting-lex-rule &
  [ INFLECTED +,
    DTR.INFLECTED -,
    SYNSEM.LOCAL [ COORD -,
                   COORD-REL #crel ],
    C-CONT [ RELS <! #crel !>,
             HCONS <! !> ]].

omni-coord-phrase := coord-phrase &
  [ C-CONT.HOOK [ LTOP #lbl, INDEX #carg ],
    LCOORD-DTR omni-left-coord-rule &
               [ SYNSEM.LOCAL [ COORD-REL [ LBL #lbl,
                                            C-ARG #carg,
                                            L-INDEX #lind,
                                            R-INDEX #rind ],
                                CONT.HOOK.INDEX #lind ]],
    RCOORD-DTR.SYNSEM.LOCAL [ COORD +,
                              CONT.HOOK.INDEX #rind ]].

omni-top-coord-rule := omni-coord-phrase &
  [ SYNSEM.LOCAL.COORD - ].

omni-mid-coord-rule := omni-coord-phrase &
  [ SYNSEM.LOCAL.COORD + ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; N Coordination rules

n-coord-phrase := coord-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.SPR < [ ] >,
    SYNSEM.LOCAL.CAT.HEAD noun,
    LCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD noun,
    RCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD noun ].

basic-n-top-coord-rule := n-coord-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.SPR < [ ] >,
    C-CONT [ RELS <! !>,
	     HCONS <! !> ]].

basic-n-mid-coord-rule := n-coord-phrase &
  [ SYNSEM.LOCAL.COORD-REL #crel,
    C-CONT [ RELS <! #crel !>,
	     HCONS <! !> ]].

n-bottom-coord-phrase := bottom-coord-phrase &
  [ SYNSEM.LOCAL.CAT [ HEAD noun,
                       VAL.SPR < [ ] > ],
    NONCONJ-DTR.SYNSEM.LOCAL.CAT [ HEAD noun,
                                   VAL.SPR < [ ] > ]].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; NP Coordination rules

np-coord-phrase := coord-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.SPR < >,
    SYNSEM.LOCAL.CAT.HEAD noun,
    LCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD noun,
    RCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD noun ].

basic-np-top-coord-rule := np-coord-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.SPR < >,
    C-CONT [ HOOK [ LTOP #ltop,
                    INDEX #ind ],
             RELS <! [ PRED "exist_q_rel", ARG0 #ind, RSTR #ltop ] !>,
	     HCONS <! !> ]].

basic-np-mid-coord-rule := np-coord-phrase &
  [ SYNSEM.LOCAL.COORD-REL #crel,
    C-CONT [ RELS <! [ ARG0 #carg, RSTR #lbl ], #crel !>,
	     HCONS <! !> ],
    RCOORD-DTR.SYNSEM.LOCAL.COORD-REL [ LBL #lbl,
                                        C-ARG #carg ]].

np-bottom-coord-phrase := bottom-coord-phrase &
  [ SYNSEM.LOCAL.CAT [ HEAD noun,
                       VAL.SPR < > ],
    NONCONJ-DTR.SYNSEM.LOCAL.CAT [ HEAD noun,
                                   VAL.SPR < > ]].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Event Coordination rules (for verbs and adjectives)

event-coord-phrase := coord-phrase &
  [ SYNSEM.LOCAL.CONT.HOOK.INDEX [ E #tam ],
    LCOORD-DTR.SYNSEM.LOCAL.CONT.HOOK.LTOP #lhndl,
    RCOORD-DTR.SYNSEM.LOCAL [ COORD-REL [ L-HNDL #lhndl,
                                          R-HNDL #rhndl,
                                          R-INDEX.E #tam ],
                              CONT.HOOK.LTOP #rhndl ]].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ADJ Coordination rules

adj-coord-phrase := event-coord-phrase &
  [ SYNSEM.LOCAL.CAT [ POSTHEAD #ph,
                       HEAD adj ],
    LCOORD-DTR.SYNSEM.LOCAL.CAT [ POSTHEAD #ph,
                                  HEAD adj ],
    RCOORD-DTR.SYNSEM.LOCAL.CAT [ POSTHEAD #ph,
                                  HEAD adj ]].

basic-adj-top-coord-rule := adj-coord-phrase &
  [ C-CONT [ RELS <! !>,
	     HCONS <! !> ]].

basic-adj-mid-coord-rule := adj-coord-phrase &
  [ SYNSEM.LOCAL.COORD-REL #crel,
    C-CONT [ RELS <! #crel !>,
	     HCONS <! !> ]].

adj-bottom-coord-phrase := bottom-coord-phrase &
  [ SYNSEM.LOCAL.CAT.HEAD adj,
    NONCONJ-DTR.SYNSEM.LOCAL.CAT.HEAD adj ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; ADV Coordination rules

adv-coord-phrase := event-coord-phrase &
  [ SYNSEM.LOCAL.CAT [ POSTHEAD #ph,
                       HEAD adv ],
    LCOORD-DTR.SYNSEM.LOCAL.CAT [ POSTHEAD #ph,
                                  HEAD adv ],
    RCOORD-DTR.SYNSEM.LOCAL.CAT [ POSTHEAD #ph,
                                  HEAD adv ]].

basic-adv-top-coord-rule := adv-coord-phrase &
  [ C-CONT [ RELS <! !>,
	     HCONS <! !> ]].

basic-adv-mid-coord-rule := adv-coord-phrase &
  [ SYNSEM.LOCAL.COORD-REL #crel,
    C-CONT [ RELS <! #crel !>,
	     HCONS <! !> ]].

adv-bottom-coord-phrase := bottom-coord-phrase &
  [ SYNSEM.LOCAL.CAT.HEAD adv,
    NONCONJ-DTR.SYNSEM.LOCAL.CAT.HEAD adv ].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; VP Coordination rules

vp-coord-phrase := event-coord-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.SUBJ < [ ] >,
    SYNSEM.LOCAL.CAT.HEAD verb,
    LCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD verb,
    RCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD verb ].

basic-vp-top-coord-rule := vp-coord-phrase &
  [ C-CONT [ RELS <! !>,
	     HCONS <! !> ]].

basic-vp-mid-coord-rule := vp-coord-phrase &
  [ SYNSEM.LOCAL.COORD-REL #crel,
    C-CONT [ RELS <! #crel !>,
	     HCONS <! !> ]].

vp-bottom-coord-phrase := bottom-coord-phrase &
  [ SYNSEM.LOCAL.CAT [ HEAD verb,
                       VAL.SUBJ < [ ] > ],
    NONCONJ-DTR.SYNSEM.LOCAL.CAT [ HEAD verb,
                                   VAL.SUBJ < [ ] > ]].

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; S Coordination rules

s-coord-phrase := event-coord-phrase &
  [ SYNSEM.LOCAL.CAT.VAL.SUBJ < >,
    SYNSEM.LOCAL.CAT.HEAD verb,
    LCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD verb,
    RCOORD-DTR.SYNSEM.LOCAL.CAT.HEAD verb ].

basic-s-top-coord-rule := s-coord-phrase &
  [ C-CONT [ RELS <! !>,
	     HCONS <! !> ]].

basic-s-mid-coord-rule := s-coord-phrase &
  [ SYNSEM.LOCAL.COORD-REL #crel,
    C-CONT [ RELS <! #crel !>,
	     HCONS <! !> ]].

s-bottom-coord-phrase := bottom-coord-phrase &
  [ SYNSEM.LOCAL.CAT [ HEAD verb,
                       VAL.SUBJ < > ],
    NONCONJ-DTR.SYNSEM.LOCAL.CAT [ HEAD verb,
                                   VAL.SUBJ < > ]].