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

[EX Q]: Who achieved fame for his ,'Confessions Of An English Opium Eater'?
[EX A]: confessions of an english opium-eater

[EX Q]: Which Football League club play their home games at Kingsmeadow, also known as the Cherry Red Records Stadium?
[EX A]: kingsmeadow

[EX Q]: Which actor is the husband of Billie Piper?
[EX A]:
billie piper