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His first viola teacher was Professor Vadim Borisovsky ; after whose death in 1972 was succeeded by Professor Fyodor Druzhinin .
 person: Vadim Borisovsky; person: Fyodor Druzhinin
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Vadim Borisovsky; person: Fyodor Druzhinin