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

Ex Input:
Who won a Gold Medal for Britain in the men's 100 metres at the 1992 Summer Olympic Games in Barcelona?

Ex Output:
britain


Ex Input:
Double vision, the perception of two images from a single object, is properly called what?

Ex Output:
double vision


Ex Input:
Who played the title role in the 1980 film 'American Gigolo'?

Ex Output:

american gigolo