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From 1956 to 1991 , the Karelian Autonomous Soviet Socialist Republic used a variant of the Emblem of the Russian Soviet Federative Socialist Republic .
 Karelian Autonomous Soviet Socialist Republic, Russian Soviet Federative Socialist Republic
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Karelian Autonomous Soviet Socialist Republic, Russian Soviet Federative Socialist Republic