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

[EX Q]: What nationality was the composer Bela Bartok?
[EX A]: bela bartok

[EX Q]: Who directed the 1988 film 'Beetle Juice'?
[EX A]: beetlejuice

[EX Q]: What city is the capital of Argentina?
[EX A]:
argentina