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 song from the film Butch Cassidy and the Sundance Kid won an Oscar for best song?

SOLUTION: academy award for best original song

PROBLEM: Who wrote the novel 'Brideshead Revisited'?

SOLUTION: brideshead revisited

PROBLEM: Which jockey won the 2007 Derby at Epsom on 'Authorized', at his fifteenth attempt?

SOLUTION:
authorized