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The parts of speech that form closed classes and have mainly just functional content are called functional categories: Lexical categories Adjective (A) and adjective phrase (AP), adverb (Adv) and adverb phrase (AdvP), noun (N) and noun phrase (NP), verb and verb phrase (VP), preposition and prepositional phrase (PP)
Pronoun (antōnymíā): a part of speech substitutable for a noun and marked for a person; Preposition (próthesis): a part of speech placed before other words in composition and in syntax; Adverb (epírrhēma): a part of speech without inflection, in modification of or in addition to a verb, adjective, clause, sentence, or other adverb
Phrase structure rules break sentences down into their constituent parts. These constituents are often represented as tree structures (dendrograms). The tree for Chomsky's sentence can be rendered as follows: A constituent is any word or combination of words that is dominated by a single node. Thus each individual word is a constituent.
The comma-free approach is often used with partial quotations: The report observed "a 45% reduction in transmission rate". A comma is required when it would be present in the same construction if none of the material were a quotation: In Margaret Mead's view, "we must recognize the whole gamut of human potentialities" to enrich our culture.
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For some time, part-of-speech tagging was considered an inseparable part of natural language processing, because there are certain cases where the correct part of speech cannot be decided without understanding the semantics or even the pragmatics of the context. This is extremely expensive, especially because analyzing the higher levels is much ...
Tests for constituents are diagnostics used to identify sentence structure. There are numerous tests for constituents that are commonly used to identify the constituents of English sentences. 15 of the most commonly used tests are listed next: 1) coordination (conjunction), 2) pro-form substitution (replacement), 3) topicalization (fronting), 4) do-so-substitution, 5) one-substitution, 6 ...