TASK DEFINITION: Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
PROBLEM: Eden Park staged some of the 2011 Rugby World Cup matches, in which city can it be found?

SOLUTION: eden park

PROBLEM: Alexander the Great died in which ancient city?

SOLUTION: alexander the great

PROBLEM: Which English classic horse race for 3 year olds held at Doncaster every September began in 1776?

SOLUTION:
doncaster racecourse