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Ilya Repin 's famous painting , Barge Haulers on the Volga , depicts such burlaks in Tsarist Russia toiling along the Volga .
 Ilya Repin, Tsarist Russia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Ilya Repin, Tsarist Russia