A Lexicalized Tree Adjoining Grammar for English

摘要: This paper presents a sizable grammar for English written in the Tree Adjoining (TAG) formalism. The uses TAG that is both lexicalized (Schabes, Abeille, Joshi 1988) and feature-based (VijayShankar, 1988). In this paper, we describe wide range of phenomena it covers. A Lexicalized (LTAG) organized around lexicon, which associates sets elementary trees (instead just simple categories) with lexical items. consists finite set associated items, operations (adjunction substitution) composing trees. item called anchor its corresponding tree directly determines tree's structure syntactic features. particular, define domain locality over constraints are specified these local respect to their anchor. basic structures LTAG described, along some relevant interaction between morphological components lexicon also explained. Next, properties different discussed. use S complements exclusively allows us take full advantage treatment unbounded dependencies originally presented (1985) Kroch (1985). Structures auxiliaries raising-verbs adjunction We present representation prepositional based on extended avoids need preposition incorporation order account double whquestions (preposition stranding pied-piping) pseudo-passive. light verb constructions given, similar what Abeille (1988c) has presented. Again, neither noun nor adjective needed handle passives CNPC violations constructions. TAG'S handle, within single level description, other frameworks require either dual analyses or reanalysis. addition, following Schabes (1989), how deal semantic non compositionality verb-particle combinations, idioms, without losing internal composition structures. last sections discuss current work PRO, case, anaphora negation, outline future copula small clauses, optional arguments, adverb movement nature rules framework. Comments University Pennsylvania Department Computer Information Science Technical Report No. MSCIS-90-24. technical report available at ScholarlyCommons: http://repository.upenn.edu/cis_reports/527 Grammar For MS-CIS-90-24 LINC LAB 170 Anne Abeillh Kathleen Bishop Sharon Cote Yves School Engineering Applied Philadelphia, PA 19104-6389