Answer:
False.
Step-by-step explanation:
A noun sentence is a dependent phrase (which needs another phrase to make sense) that acts as a noun, that is, this sentence names everything that exists. The noun sentence, like the noun, represents everything that gives names to beings, everything you see, hear, feel or imagine. A noun sentence serves primarily as the nucleus of the subject, the direct object, the indirect object, and the agent of the passive, but this sentence can not serve as a prepositional phrase.
As I said before, the noun sentence has the same functions as a noun. Nouns do not have the same function as the prepositional phrase, which is to modify the verb or the noun.