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

Ex Input:
Who plays Isobel Crawley in the UK television series 'Downton Abbey'?

Ex Output:
downton abbey


Ex Input:
Which Best Picture nominated movie tells the story of US soldier, 'Chris' Kyle?

Ex Output:
chris kyle


Ex Input:
What 1978 film featured the songs You're the One That I Want and Born to Hand Jive?

Ex Output:

you're the one that i want