TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Aaron Copeland wrote a ballet about which American folk hero?

SOLUTION: aaron copeland

PROBLEM: Which SF author wrote The Day it Rained Forever?

SOLUTION: the day it rained forever

PROBLEM: In which country was Chopin born?

SOLUTION:
frederic chopin