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

Q: What style of facial hair was famously worn by American Civil War general Ambrose Burnside?

A: ambrose burnside
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Q: In which constellation is the star Deneb?

A: deneb
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Q: Who dominated women's swimming in the mid-70s winning 4 gold medals in the 1976 Olympics?

A:
1976 summer olympics
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