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

Q: With which song did Swedish pop group Abba win the 1974 Eurovision Song Contest?

A: abba
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Q: Where is David Cameron's Oxfordshire constituency?

A: david cameron
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Q: The Broads, a network of mostly navigable rivers and lakes, are mainly in which English county?

A:
the broads
****