TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Who won the 2011 Booker Prize for 'The Sense of an Ending'?

SOLUTION: the sense of an ending

PROBLEM: In which wars did the battles of Towton and Barnet take place?

SOLUTION: battle of barnet

PROBLEM: Which English seaside town had the first Butlins camp?

SOLUTION:
butlins