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It was written to establish a free Zaporozhian-Ukrainian Republic , with the support of Charles XII of Sweden .
 Zaporozhian-Ukrainian Republic, Charles XII, Sweden
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Zaporozhian-Ukrainian Republic, Charles XII, Sweden