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

Q: Which actress played Arwen in the trilogy of films?

A: arwen
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Q: Which brothers own the Daily Telegraph?

A: the daily telegraph
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Q: What is the correct title of a 2012 hit for Owl City and Carly Rae Jepsen?

A:
owl city
****