TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: In May 1940, who became British Prime Minister after the resignation of Neville Chamberlain?

SOLUTION: prime minister of the united kingdom

PROBLEM: Chris Martin is the lead singer with which band who had several hits in the 2000s?

SOLUTION: chris martin

PROBLEM: In the Bible who did God appear to on Mount Horab?

SOLUTION:
bible