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: Richard Addinsell's most famous piece of music was used in the 1941 film 'Dangerous Moonlight', what is its title?

Answer: dangerous moonlight


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: Who played bass guitar in the Beatles?

Answer:
the beatles