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

Q: Which 1970s musical film starred Angela Lansbury as a trainee witch?

A: angela lansbury
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Q: In March 1992 'Deeply Dippy' was the only number one hit for which group?

A: deeply dippy
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Q: Which actor starred as Dr Who in the 1st colour episode?

A:
doctor who
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