Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Which former Portuguese African Colony joined the British Commonwealth in 1995?

Answer: commonwealth of nations


Question: Which entertainer uses various names, including Puff Daddy, P. Diddy and Diddy?

Answer: p. diddy


Question: The Ashmolean Museum is Britain's oldest public museum. In which city is it located?

Answer:
ashmolean museum