Clarifying Noun Phrase Semantics

Abstract Reprise questions are a common dialogue device allowing a conversational participant to request clarification of the meaning intended by a speaker when uttering a word or phrase. As such they can act as semantic probes, providing us with information about what meaning can be associated with word and phrase types and thus helping to sharpen the principle of compositionality. This paper discusses the evidence provided by reprise questions concerning the meaning of nouns, noun phrases and determiners. Our central claim is that reprise questions strongly suggest that quantified noun phrases denote (situationdependent) individuals – or sets of individuals – rather than sets of sets, or properties of properties. We outline a resulting analysis within the HPSG framework, and discuss its extension to such phenomena as quantifier scope, anaphora and monotone decreasing quantifiers.