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

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

Who was the first person to sign the American Declaration of Independence?
united states declaration of independence

Who was the second cricketer to score 36 runs off an over in first class cricket?

cricket