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

[EX Q]: Who succeeded Henry Cooper as British Heavyweight Boxing Champion?
[EX A]: boxing

[EX Q]: Which Best Picture nominated movie tells the story of US soldier, 'Chris' Kyle?
[EX A]: chris kyle

[EX Q]: Which singer recorded the very successful album 'Back to Black'?
[EX A]:
back to black

