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: What type of creature is an argali?

Answer: argali


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

Answer: ahura mazda


Question: The only sitcom created solely by Johnnie Mortimer, which 1981-1991 sitcom starred Windsor Davies and Donald Sinden as warring antique dealers?

Answer:
donald sinden