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: Which English classic horse race for 3 year olds held at Doncaster every September began in 1776?

SOLUTION: doncaster racecourse

PROBLEM: What famous novel invented the terms thoughtcrime and doubleplusgood?

SOLUTION:
newspeak