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

[Q]: 'Arthur Clennam', 'Jeremiah Flintwinch', and 'Edward Sparkler' are all characters in which Dickens' novel?
[A]: arthur clennam


[Q]: Which Dutchman managed both Newcastle and Chelsea in the 1990s?
[A]: chelsea f.c.


[Q]: Which American rock band, formed in 1964, included amongst its members David Crosby and Roger McGuinn?
[A]:
david crosby