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

[Q]: Christopher Eccleston, Kerry Fox and Ewan McGregor played flatmates in which 1994 film?
[A]: christopher eccleston

[Q]: The Bob Dylan songs 'Desolation Row', 'Tombstone Blues' and 'Like A Rolling Stone' featured on which album?
[A]: tombstone blues

[Q]: Cimarron County, Texas County and Beaver County are all in the north west of which US state?
[A]:
beaver county