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In 1986 , he and Keith Emerson decided to re-form Emerson , Lake & Palmer to record another album .
 Keith Emerson, Emerson , Lake & Palmer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Keith Emerson, Emerson , Lake & Palmer