TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: In which film did Sharon Stone play the character 'Catherine Tramell?

SOLUTION: catherine tramell

PROBLEM: Which Nation does Aston Villa Goalkeeper Brad Guzan represent?

SOLUTION: brad guzan

PROBLEM: Who wrote the children's book Danny, the Champion of the World?

SOLUTION:
danny, the champion of the world