instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Who directed the 2005 film 'Brokeback Mountain'?
answer:
brokeback mountain


question:
What is the county town of Derbyshire?
answer:
derbyshire


question:
With which art form do you associate Ansel Adams and Robert Mapplethorpe?
answer:

robert mapplethorpe