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

Q: Who played boxer James Braddock in the 2005 biopic Cinderella Man?

A: james j. braddock
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Q: Who bad a number 1 in the 1980's with Circle in the Sand?

A: circle in the sand
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Q: Which heavenly body was discovered by astronomer Clyde W Tombaugh on 18 February 1930?

A:
clyde tombaugh
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