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

[Q]: Which American actor and singer has joined Amanda Holden as one of the judges on the current series of 'Britain's Got Talent'?
[A]: britain's got talent


[Q]: Which jockey won the 1981 UK Grand National on Aldaniti?
[A]: aldaniti


[Q]: Which artistic movement was led by Henri Matisse and Andre Derain?
[A]:
andre derain