TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: The Cato Street Conspiracy was a plot to kill which British Prime Minister?

SOLUTION: prime minister of the united kingdom

PROBLEM: Which 1976 Derek Jarman film was dialogued entirely in Latin?

SOLUTION: derek jarman

PROBLEM: In Desperate Housewives, who played Susan Mayer?

SOLUTION:
susan mayer