Question: What is the nationality of this novelist, short story writer, poet, screenwriter, and fighter pilot who wrote the novel that inspired the 1971 film "Willy Wonka & the Chocolate Factory?"
Sentence (from "Willy Wonka &amp; the Chocolate Factory"): It is an adaptation of the 1964 novel "Charlie and the Chocolate Factory" by Roald Dahl.
Relevant evidence: Yes