49259
His body was probably buried in the prison in Vladimir on Klyazma , though the whereabouts of his death , as well as the place of his burial remain classified .
 Vladimir, Klyazma
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Vladimir, Klyazma