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

[Q]: Who married the woman who was to become Queen Beatrix of the Netherlands, on 10 March 1966?
[A]: beatrix


[Q]: Which TV character has sisters called Daisy and Rose?
[A]: daisy


[Q]: Carnival Ride was a No.1 album in 2007 for which artist?
[A]:
carnival ride