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

Q: Grace Anna Goodhue was the wife of which US President?

A: grace coolidge
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Q: Which play and film was adapted from a story by Christopher Isherwood and later adapted as the musical and film Cabaret?

A: cabaret
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Q: Apia is the capital of which independent island nation in the South Pacific?

A:
apia
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