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

Q: Aldebaran is the brightest star in which constellation?

A: aldebaran
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Q: In which book of the Bible are the Ten Commandments first mentioned?

A: bible
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Q: Who was British Prime Minister at the time of the Cuban Missile Crisis?

A:
prime minister of the united kingdom
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