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

Q: In which war was the Battle of Bunker Hill?

A: battle of bunker hill
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Q: The towns od Grimsby and Cleethorpes are in which English county?

A: grimsby
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Q: Which film starring Bruce Willis, Billy Bob Thornton and Ben Affleck was the world's highest grossing film of 1998?

A:
bruce willis
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