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

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

Ex Output:
sheep


Ex Input:
In which 1960's TV series did Clarence the cross-eyed lion appear?

Ex Output:
clarence, the cross-eyed lion


Ex Input:
Which actor provided the television voice for 'Captain Scarlet'?

Ex Output:

captain scarlet and the mysterons