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phrase-structure rule
noun
, Linguistics.
- a rule that generates a sentence or other syntactic construction from words and phrases and identifies its constituent structure.
phrase-structure rule
noun
- generative grammar a rule of the form A → X where A is a syntactic category label, such as noun phrase or sentence, and X is a sequence of such labels and/or morphemes, expressing the fact that A can be replaced by X in generating the constituent structure of a sentence Also calledrewrite rule Compare transformational rule
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