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

[Q]: Who has taken over the TV role of Doctor Who, from actor David Tennant?
[A]: doctor who


[Q]: Who choreographed the ballets Swan Lake and Don Quixote, among others?
[A]: don quixote


[Q]: What is the title of Kazuo Ishiguro's 1989 Booker Prize winning novel which was made into a 1993 film of the same name starring Anthony Hopkins and Emma Thompson?
[A]:
anthony hopkins