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: Who is the BBC's political editor?

Answer: bbc

Question: Who played boxer James Braddock in the 2005 biopic Cinderella Man?

Answer: james j. braddock

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

Answer:
dangerous moonlight