TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Who played Captain Jean-Luc Picard in the television series 'Star-Trek: The Next Generation'?

SOLUTION: jean-luc picard

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

SOLUTION: chris kyle

PROBLEM: In what country did Bossa Nova music originate?

SOLUTION:
nova