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

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

Ex Output:
huw bunford

Ex Input:
Of which Canadian Province is Labrador a part?

Ex Output:
canada

Ex Input:
Actor and theatre producer Bill Kenwright became chairman of which English football club in 2004?

Ex Output:
bill kenwright