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: Who choreographed the ballets Swan Lake and Don Quixote, among others?

SOLUTION: don quixote

PROBLEM: Which `brothers` had a number one hit in May 1958 with `All I Have To Do Is Dream`?

SOLUTION:
all i have to do is dream