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

[EX Q]: Alexander the Great died in which ancient city?
[EX A]: alexander the great

[EX Q]: Although it was headquartered at Oak Ridge, TN, and the University of Chicago, what was the name of the WWII project that created the atomic bomb?
[EX A]: nuclear weapon

[EX Q]: Antananarivo is the capital of which country?
[EX A]:
antananarivo