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 was Bon Jovi's first UK top ten hit single?

SOLUTION: bon jovi

PROBLEM: In which city will the 2014 Tour de France begin?

SOLUTION: 2014 tour de france

PROBLEM: By what name was actor Arthur Stanley Jefferson better known?

SOLUTION:
arthur stanley jefferson