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

Which European country contains the ski resorts of Davos and Klosters?
klosters

What is the country of origin of the cheese called caerphilly?
caerphilly cheese

Johnny Depp plays John Wilmot, Second Earl of Rochester, in which 2004 film?

johnny depp