Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

[EX Q]: Who was the only boxer to win a world title without ever having a manager?
[EX A]: boxing

[EX Q]: Who played Lionel Hardcastle in the TV series 'As Time Goes By'?
[EX A]: as time goes by

[EX Q]: What did Benjamin Franklin claim as his trade?
[EX A]:
benjamin franklin