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 did boxer Floyd Patterson defeat to regain the Heavyweight Championship in June 1960?

Answer: boxing


Question: In which town in California is Disneyland?

Answer: disneyland


Question: Mark Twain's classic book, Adventures of Huckleberry Finn takes place along which US river?

Answer:
adventures of huckleberry finn