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Originally they were part of the Black Sea Cossack Host and then later in the 19th and 20th centuries Kuban Cossack Host .
 Black Sea Cossack Host, Kuban Cossack Host
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Black Sea Cossack Host, Kuban Cossack Host