This document discusses noun phrases and prepositional phrases. It defines a noun phrase as a single word, pronoun, or group of words clustered around a noun as the head word. Noun phrases can contain various modifiers like restrictors, determiners, ordinals, quantifiers, adjectives, and classifiers appearing in a specific order. A prepositional phrase is defined as a noun phrase preceded by a preposition, with the preposition linking the noun phrase to another part of the sentence. Several examples of noun phrases and their structure are provided.