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After Efros 's death three years later , a staunch Communist supporter , Nikolay Gubenko , was nominated to lead the troupe .
 person: Efros; person: Nikolay Gubenko
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: Efros, Nikolay Gubenko 
Answer:
 person: Efros; person: Nikolay Gubenko