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

[EX Q]: Who had hits with Stepping Out and Different For Girls?
[EX A]: different for girls

[EX Q]: The Brooklyn Bridge crosses which river?
[EX A]: brooklyn bridge

[EX Q]: In which film did Bruce Willis play the character 'Harry Stamper'?
[EX A]:
bruce willis