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

[Q]: Whitney Houston's husband Bobby Brown was originally a member of which successful band?
[A]: bobby brown

[Q]: Who had a hit album with Back to Bedlam in 2005?
[A]: back to bedlam

[Q]: Who painted Dedham Vale and The Valley Farm?
[A]:
dedham vale