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 highly influential movement of artwork is considered established by Picasso, Braque, Metzinger and others in Paris, 1911?

SOLUTION: jean metzinger

PROBLEM: Which BBC current affairs programme, the longest-running in the world, is 60 years old this year ?

SOLUTION: bbc

PROBLEM: Who was the drummer with the 1970's rock band 'Led Zepplin'?

SOLUTION:
drummer