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 US state are the Catskill Mountains?

SOLUTION: catskill mountains

PROBLEM: Which is the only film of the fantasy genre ever to win the best picture Oscar - full name required?

SOLUTION: academy award for best picture

PROBLEM: On which play was the film Cabaret based?

SOLUTION:
cabaret