Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Who is the most famous cartoon creation of Chester Gould?

Answer: chester gould


Question: Which film actor (1895-1926) is known for his films The Four Horsemen, The Sheik and Blood And Sand?

Answer: blood and sand


Question: Who wrote `20,000 Leagues Under The Sea`?

Answer:
20,000 leagues under the sea