Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

Q: Which English Leicester-born boxer fought Marvin Hagler in 1983 for the WBC and WBA World Middleweight titles and lost by a technical knockout in the sixth round?

A: boxing
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Q: What was Paul McCartney's first solo album called?

A: album
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Q: Who had a number one in the fifties with Butterfly?

A:
butterfly
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