instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
What was Paul McCartney's first solo album called?
answer:
album


question:
Who had a hit album in 2010 with Can't Be Tamed?
answer:
can't be tamed


question:
Which comic hero was created by Bob Kane and Bill Finger in 1939?
answer:

bob kane