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 was Prime Minister of Australia at the outbreak of World War I?

SOLUTION: australia

PROBLEM: Which pop group consisted of Huw Bunford, Clan Caren, Dafydd Leuan, Guto Price and Gryff Rhuys?

SOLUTION: huw bunford

PROBLEM: In which country is the region of Aragon?

SOLUTION:
aragon