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 is the second largest of the Balearic Islands ?

SOLUTION: balearic islands

PROBLEM: The towns od Grimsby and Cleethorpes are in which English county?

SOLUTION: grimsby

PROBLEM: Actress Audrey Hepburn sang 'Moon River' in which 1961 film?

SOLUTION:
moon river