Given a factoid/trivia type question, generate the topic of the question. The topic is the entity the question talks about.
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Question: Who was the father of Edward the Elder, the Anglo-Saxon King from 899 to 924?

Answer: edward the elder


Question: 'Bring It All Back' was the debut single for which group in 1999?

Answer: bring it all back


Question: Ornette Coleman, Louis Armstrong and Charles Mingus are associated with what style of music?

Answer:
charles mingus