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 1959, for which film did David Niven win his only Academy Award?

SOLUTION: david niven

PROBLEM: Who was re-elected Prime Minister of Canada in May 2011?

SOLUTION: prime minister of canada

PROBLEM: At which ground in Auckland will the final of the Rugby Union World Cup be played on the 23rd of this month?

SOLUTION:
auckland