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Valerian Vladimirovich Kuybyshev ( ( 1888 – 1935 ) , was a Russian revolutionary , Red Army officer , and prominent Soviet politician .
 Valerian, Kuybyshev, Red Army, Soviet
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Valerian, Kuybyshev, Red Army, Soviet