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It was the administrative center of Yugra and Pechora krais of Muscovy and Imperial Russia .
 Yugra, Pechora, Muscovy, Imperial Russia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Yugra, Pechora, Muscovy, Imperial Russia