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

[Q]: Who stars in the TV series Californication?
[A]: californication


[Q]: Which river begins in the Rocky Mountains in south-west Colorado, crosses New Mexico and forms the border between Mexico and the USA before reaching the Gulf of Mexico?
[A]: new mexico


[Q]: What variety of grape is used to produce the Italian red wine Chianti?
[A]:
chianti