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for artists including Leon Russell , Joe Cocker , Harry Chapin , Bob Dylan , Jimi Hendrix , Eric Clapton , Dave Mason , Graham Nash , and Stephen Stills .
 person: Leon Russell; person: Joe Cocker; person: Harry Chapin; person: Bob Dylan; person: Jimi Hendrix; person: Eric Clapton; person: Dave Mason; person: Graham Nash; person: Stephen Stills
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Leon Russell, Joe Cocker, Harry Chapin, Bob Dylan, Jimi Hendrix, Eric Clapton, Dave Mason, Graham Nash, Stephen Stills 
Answer:
 person: Leon Russell; person: Joe Cocker; person: Harry Chapin; person: Bob Dylan; person: Jimi Hendrix; person: Eric Clapton; person: Dave Mason; person: Graham Nash; person: Stephen Stills