TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Who is the only British Prime Minister to serve under 3 monarchs?

SOLUTION: prime minister of the united kingdom

PROBLEM: Whose tale in Chaucer's The Canterbury Tales tells of a knight sent away by his queen to discover what women want above all else?

SOLUTION: the canterbury tales

PROBLEM: Who is best known for his ballet scores for La Esmeralda, Ondine, and The Pharaoh's Daughter?

SOLUTION:
la esmeralda