Using an Enriched TAG Derivation Structure as Basis for Semantics

Abstract

Most of the proposals for semantics in the Tree Adjoining Grammar (TAG) framework suppose that the derivation tree serves as basis for semantics. However, in some cases the derivation tree does not provide the semantic links one needs. This paper concentrates on one of these cases, namely the analysis of quantifiers as adjuncts. The paper proposes to enrich the TAG derivation tree and use the resulting structure as basis for semantics. This allows to deal with quantifiers, even in PPs embedded into NPs, such that an adequate semantics with appropriate scope orders is obtained. The enriched derivation structure allows also to treat other cases that are problematic for the assumption that a TAG semantics can be based on the derivation tree.

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