Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

[EX Q]: The Battle of Poltava in 1709 was a victory by Peter the Great over which state?
[EX A]: battle of poltava

[EX Q]: Which brothers own the Daily Telegraph?
[EX A]: the daily telegraph

[EX Q]: The obsequious ever so 'umble money-lender in Charles Dickens' novel David Copperfield, is?
[EX A]:
charles dickens