Question: Name a word that can be used to describe the prolific contributors Grażyna Miller, a Polish poet and Alan Dean Foster a writer of fantasy and science fiction?
Sentence (from "Alan Dean Foster"): Alan Dean Foster (born November 18, 1946) is an American writer of fantasy and science fiction, a prolific creator of and contributor to book series as well as the author of more than 20 standalone novels.
Relevant evidence: Yes