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

Q: Ride of the Valkyries is the official quick march of which branch of the British Army?

A: british army
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Q: Which current Broadway musical has a Japanese therapist character called Christmas Eve?

A: christmas eve
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Q: Which instrument did Charlie 'Bird' Parker play?

A:
bird
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