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

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


[Q]: In which US state are the Catskill Mountains?
[A]: catskill mountains


[Q]: In which city can you visit the Sultan Ahmed Mosque, also known as the Blue Mosque?
[A]:
blue mosque