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

Q: Lopburi, Phichit and Ang Thong are provinces in which Asian country?

A: phichit
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Q: What nickname is given to the Australian Association Football International team?

A: australia
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Q: Brad Pitt plays the part of Benjamin Button on film, who wrote the book on which the film is based?

A:
the curious case of benjamin button
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