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: In which religion is there one god called Ahura Mazda?

Answer: ahura mazda


Question: Which American actor and singer has joined Amanda Holden as one of the judges on the current series of 'Britain's Got Talent'?

Answer: britain's got talent


Question: Name the Italian-born American film producer (of Death Wish, Barbarella, and Hannibal) who died in November 2010 age 91?

Answer:
death wish