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

Q: Who was in the films Zelig, Stardust Memories, and Broadway Danny Rose?

A: broadway danny rose
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Q: Harry, Tom, Dougie and Danny are collectively known as who in the pop world?

A: dougie poynter
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Q: In which conflict did these three battles occur, Memphis, Antietam and Fredericksburg?

A:
battle of antietam
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