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He also shared classes with the composers Boris Asafyev and Nikolai Myaskovsky , the latter becoming a relatively close and lifelong friend .
 Boris Asafyev, Nikolai Myaskovsky
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Boris Asafyev, Nikolai Myaskovsky