Answer:
An etching of a cave bear was found. In the sentence, the phrase of a cave bear is an adjective phrase.
Explanation: An adjective phrase is more than a group of words with an adjective in it. In fact, it is a group of words describing a noun or pronoun in a sentence and thus functioning as an adjective. An adjective phrase can be formed out of an intensifier and an adjective, if the first word is an adverb or a preposition, there's a good chance you're looking at an adjective phrase.
