Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.

[EX Q]: Which pop group consisted of Huw Bunford, Clan Caren, Dafydd Leuan, Guto Price and Gryff Rhuys?
[EX A]: huw bunford

[EX Q]: What is the smallest country in Central America Costa Rica, Venezuela or El Salvador?
[EX A]: central america

[EX Q]: Which actress played the title role in the film Barbarella?
[EX A]:
barbarella