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

[Q]: What is the smallest country in Central America Costa Rica, Venezuela or El Salvador?
[A]: central america

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

[Q]: Which jockey, later famous in another sphere, rode Devon Loch in the 1956 Grand National?
[A]:
1956 grand national