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

[Q]: Which entertainer uses various names, including Puff Daddy, P. Diddy and Diddy?
[A]: p. diddy


[Q]: Which horse won the 2009 Epsom Derby?
[A]: 2009 epsom derby


[Q]: In which country can you find the cities of Salta, Corrientes and Rosario?
[A]:
corrientes