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]: Aragon and Castile joined to form which country?
[A]: aragon


[Q]: Cleopatra's Needle in London had stood in which Egyptian city since 12 BC?
[A]:
cleopatra