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Surgeon Renat Akchurin who led the operation , told Itar-Tass news agency Yeltsin was working up to four hours a day at his residence .
 person: Yeltsin; organization: Itar-Tass; person: Renat Akchurin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 person: Yeltsin; organization: Itar-Tass; person: Renat Akchurin