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

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

[EX Q]: The song Don't Rain On My Parade features in which musical?
[EX A]: don't rain on my parade

[EX Q]: The wartime code-breaking centre, Bletchley Park, is in which New Town?
[EX A]:
bletchley park