TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Which Best Picture nominated movie tells the story of US soldier, 'Chris' Kyle?

SOLUTION: chris kyle

PROBLEM: In which religion is there one god called Ahura Mazda?

SOLUTION: ahura mazda

PROBLEM: What is the official language of the Canadian province Quebec?

SOLUTION:
canada