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

Ex Input:
Which English comedian has joined Amanda Holden as one of the judges on the current series of 'Britain's Got Talent'?

Ex Output:
britain's got talent


Ex Input:
Austin is the state capitol of which US State?

Ex Output:
austin, texas


Ex Input:
Which country did Charlene, now Princess of Monaco, represent at swimming in the 2000 Sydney Olympics?

Ex Output:

2000 summer olympics