instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Which is the only film of the fantasy genre ever to win the best picture Oscar - full name required?
answer:
academy award for best picture


question:
Which English king was the son of Edward, the Black Prince?
answer:
edward, the black prince


question:
Britain's oldest working theatre, built in 1766, is called the 'Old Vic', in which city is it?
answer:

britain