instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Who wrote the novel 'Brideshead Revisited'?
answer:
brideshead revisited


question:
Which singer played Billie Holiday in the 1972 film `Lady Sings The Blues`?
answer:
lady sings the blues


question:
In which North East town is Bank Top Railway station?
answer:

darlington railway station