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In 2005 , Michael Eisner retired after Walt Disney 's nephew , Roy Disney , led a shareholder revolt , claiming Eisner was a micromanager who had caused a creative brain drain .
 Michael Eisner, Walt Disney, Roy Disney, Eisner
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Michael Eisner, Walt Disney, Roy Disney, Eisner