instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Which US state was the title of a no. 1 hit for the Bee Gees in 1967?
answer:
bee gees


question:
Who stars in the TV series Californication?
answer:
californication


question:
Which girl band had a 2005 hit with Dont Cha?
answer:

don't cha