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

[Q]: Who had a 2000 hit with Country Grammar?
[A]: country grammar


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


[Q]: Name the CIA employee who famously became a whistleblower in 2013, revealing details of US/UK mass public surveillance?
[A]:
central intelligence agency