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

[Q]: Which American city has baseball-playing 'Dodgers'?
[A]: los angeles dodgers


[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?
[A]: nuclear weapon


[Q]: In Which European city would you go to the Bardini Museum and the Bargello Museum?
[A]:
giardino bardini