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Following a brief stint at a school of agriculture he joined the Soviet armed forces in 1932 and was sent to for training to an army aviation school in Luhansk , which he completed the following year .
 Luhansk
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Luhansk