TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Alexander the Great died in which ancient city?

SOLUTION: alexander the great

PROBLEM: Which biologist was known as Darwin's Bulldog?

SOLUTION: charles darwin

PROBLEM: In which European city would you find Anne Frank`s house?

SOLUTION:
anne frank house