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

Q: In which city could you visit the Anne Frank House?

A: anne frank house
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Q: In which bay is Alcatraz?

A: alcatraz island
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Q: Which author wrote Patriot Games, Clear And Present Danger and The Hunt For Red October?

A:
clear and present danger
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