TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: What famous novel invented the terms thoughtcrime and doubleplusgood?

SOLUTION: newspeak

PROBLEM: Who directed the 1988 film 'Beetle Juice'?

SOLUTION: beetlejuice

PROBLEM: Who wrote, produced and directed the 2009 film 'Avatar'?

SOLUTION:
avatar