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

Of which Canadian Province is Labrador a part?
canada

Which four letter word beginning with 'F' is a white crumbly Greek cheese, made from sheep's or goats milk and cured in brine?
sheep

Which tennis player beat Andre Agassi in the Men's Wimbledon Singles Finals in three straight sets in 1999?

tennis