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: Who choreographed the ballets Swan Lake and Don Quixote, among others?

SOLUTION: don quixote

PROBLEM: Who is credited with writing most of the Bible book of Psalms?

SOLUTION:
psalms