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

Q: Which is the only Avril Lavigne song to have reached No.1 in the US Billboard Chart?

A: avril lavigne
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Q: Which exponent of Brit Art created works involving a bed, a tent and a beach hut?

A: young british artists
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Q: Which composer was married to Clara Wieck from 1840 until his death in 1856?

A:
clara schumann
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