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: With eight goals which Barcelona player was the leading scorer in the 2009-10 Champions League?

A: barcelona
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Q: Which 1813 battle was also known as the Battle of the Nations?

A:
battle of leipzig
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