In a sentence that begins with "Dr. Benton Jones, a winner of the Nobel Prize for his chemistry theories," the phrase a winner of the Nobel Prize for his chemistry theories is a(n) ?

appositive

Explanation:

An appositive is a noun phrase whereby one noun or in some other cases a pronoun is used, then there'll be another word that'll be used to clarify the noun or pronoun.

In thus case, the noun is "Dr. Benton Jones" while "a winner of the Nobel Prize for his chemistry theories" is clarifying Dr Benton Jones.

Therefore, this is an example of appositive.

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