#19781Alexicons for French is also being developed.
lr,1-4-H89-1036,ak
<term>
elementary structure
</term>
. The
<term>
' grammar '
</term>
consists of a
<term>
lexicon
</term>
#19588The' grammar ' consists of a lexicon where each lexical item is associated with a finite number of structures for which that item is the head.
lr,1-7-H89-1036,ak
these structures are composed . A
<term>
grammar
</term>
of this form will be said to be '
#19641Agrammar of this form will be said to be 'lexicalized'.
lr,1-8-H89-1036,ak
be said to be ' lexicalized ' . A
<term>
' lexicalized ' grammar
</term>
naturally follows from the
<term>
extended
#19655A' lexicalized ' grammar naturally follows from the extended domain of locality of TAGs.
lr,11-14-H89-1036,ak
parser
</term>
for
<term>
TAGs
</term>
,
<term>
lexicons
</term>
for
<term>
English
</term>
are under
#19773Along with the development of an Earley-type parser for TAGs,lexicons for English are under development.
lr,3-16-H89-1036,ak
being developed . Subsets of these
<term>
lexicons
</term>
are being incrementally interfaced
#19792Subsets of theselexicons are being incrementally interfaced to the parser.
lr,5-9-H89-1036,ak
general
<term>
parsing strategy
</term>
for
<term>
' lexicalized ' grammars
</term>
is discussed . In the first stage
#19675A general parsing strategy for' lexicalized ' grammars is discussed.
lr,7-4-H89-1036,ak
<term>
' grammar '
</term>
consists of a
<term>
lexicon
</term>
where each
<term>
lexical item
</term>
#19594The 'grammar' consists of alexicon where each lexical item is associated with a finite number of structures for which that item is the head.
model,1-3-H89-1036,ak
constraints
</term>
can be stated . These
<term>
constraints
</term>
either hold within the
<term>
elementary
#19565Theseconstraints either hold within the elementary structure itself or specify what other structures can be composed with a given elementary structure.
model,17-2-H89-1036,ak
context-free grammar
</term>
) over which
<term>
constraints
</term>
can be stated . These
<term>
constraints
#19559These structures specify extended domains of locality (as compared to a context-free grammar) over whichconstraints can be stated.
model,4-5-H89-1036,ak
head
</term>
. There are no separate
<term>
grammar rules
</term>
. There are , of course ,
<term>
'
#19619There are no separategrammar rules.
model,6-6-H89-1036,ak
rules
</term>
. There are , of course ,
<term>
' rules '
</term>
which tell us how these structures
#19628There are, of course,' rules ' which tell us how these structures are composed.
other,10-4-H89-1036,ak
of a
<term>
lexicon
</term>
where each
<term>
lexical item
</term>
is associated with a finite number
#19597The 'grammar' consists of a lexicon where eachlexical item is associated with a finite number of structures for which that item is the head.
other,11-10-H89-1036,ak
<term>
parser
</term>
selects a set of
<term>
elementary structures
</term>
associated with the
<term>
lexical
#19693In the first stage, the parser selects a set ofelementary structures associated with the lexical items in the input sentence, and in the second stage the sentence is parsed with respect to this set.
other,12-1-H89-1036,ak
is systematically associated with a
<term>
lexical head
</term>
. These structures specify
<term>
extended
#19539In our approach, each elementary structure is systematically associated with alexical head.
other,12-18-H89-1036,ak
representing them semantically as one
<term>
entry
</term>
. We finally show how they can be
#19824We assign them regular syntactic structures while representing them semantically as oneentry.
other,12-2-H89-1036,ak
locality
</term>
( as compared to a
<term>
context-free grammar
</term>
) over which
<term>
constraints
</term>
#19554These structures specify extended domains of locality (as compared to acontext-free grammar) over which constraints can be stated.
other,13-14-H89-1036,ak
TAGs
</term>
,
<term>
lexicons
</term>
for
<term>
English
</term>
are under development . A
<term>
lexicons
#19775Along with the development of an Earley-type parser for TAGs, lexicons forEnglish are under development.
other,14-13-H89-1036,ak
CFG skeleton
</term>
and that have a
<term>
TAG skeleton
</term>
. Along with the development of an
#19759The system parses unification formalisms that have a CFG skeleton and that have aTAG skeleton.
other,16-10-H89-1036,ak
structures
</term>
associated with the
<term>
lexical items
</term>
in the
<term>
input sentence
</term>
#19698In the first stage, the parser selects a set of elementary structures associated with thelexical items in the input sentence, and in the second stage the sentence is parsed with respect to this set.