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 popular Doctor Who villains, it was revealed in 2011, are to be given 'a rest' by scriptwriters?

Answer: doctor who


Question: Whose tale in Chaucer's The Canterbury Tales tells of a knight sent away by his queen to discover what women want above all else?

Answer: the canterbury tales


Question: Catherine Hogarth was the wife of which British novelist?

Answer:
catherine dickens