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: Which boxer was nicknames `The Brown Bomber`?

Answer: boxing


Question: Richard Addinsell's most famous piece of music was used in the 1941 film 'Dangerous Moonlight', what is its title?

Answer: dangerous moonlight


Question: Who was the leading man in the film 'Breakfast at Tiffany's?

Answer:
breakfast at tiffany's