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

[Q]: Which horse won the 2008 Grand National?
[A]: 2008 grand national


[Q]: Who plays Dr Evil the nemesis of Austin Powers in the Austin Powers series of films?
[A]: austin powers


[Q]: Which book of the Bible recounts Paul's missionary travels?
[A]:
bible