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

Input: Consider Input: Who wrote the novel 'Brideshead Revisited'?

Output: brideshead revisited

Input: Consider 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?

Output: sheep

Input: Consider Input: John Wayne played the lead role of whom in the 1958 film The Conqueror?
Output: john wayne