TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Which popular Doctor Who villains, it was revealed in 2011, are to be given 'a rest' by scriptwriters?

SOLUTION: doctor who

PROBLEM: In which British city would you find Barlinnie prison?

SOLUTION: hm prison barlinnie

PROBLEM: Field Marshal Arthur Wellesley, shares his better known title with which Southern Hemisphere capital city?

SOLUTION:
arthur wellesley, 1st duke of wellington