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Tsatur Paveli Aghayan ( , Tsatur Pavlovich Agayan ; 30 December 1911 – 3 December 1982 ) was a Soviet Armenia n historian .
 Tsatur, Aghayan, Tsatur, Soviet Armenia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tsatur, Aghayan, Tsatur, Soviet Armenia