instruction:
Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
question:
Ornette Coleman, Louis Armstrong and Charles Mingus are associated with what style of music?
answer:
charles mingus


question:
Who succeeded Jon Pertwee as Doctor Who?
answer:
doctor who


question:
Who did Sue Barker replace as host of the BBC quiz show A Question Of Sport?
answer:

bbc