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In August 1904 he left the military school in Nizhny Novgorod and went to the artillery school , considered one of the best of its kind .
 Nizhny Novgorod
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Nizhny Novgorod