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

[EX Q]: Beaune, Nuits St George and Chambertin are wines from which French wine region?
[EX A]: beaune

[EX Q]: What was Paul McCartney's first solo album called?
[EX A]: album

[EX Q]: Which actor played the part of Captain Smith in the 1997 film `Titanic'?
[EX A]:
captain smith