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

[EX Q]: Who has written a series of novels, entitled The Dark Tower, of which the first, in 1982, was entitled, The Gunslinger?
[EX A]: the dark tower

[EX Q]: Which football team play home games at Bloomfield Road?
[EX A]: bloomfield road

[EX Q]: Which actress, who appeared in 24 of the films, played Calpurnia in Carry On Cleo?
[EX A]:
carry on cleo