188001
Following the Russian Civil War , he enrolled at the school of the Moscow Art Theatre , where his classmates included Mikhail Kedrov and Boris Livanov .
 Moscow Art Theatre, Mikhail Kedrov, Boris Livanov
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Moscow Art Theatre, Mikhail Kedrov, Boris Livanov