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The United States said in Washington on Friday that it had brokered a ceasefire to end six days of fighting between the two main Kurdish factions and persuaded them to attend U.S.-mediated peace talks next month .
 Washington, Kurdish, United States, U.S.-mediated
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 Washington, Kurdish, United States, U.S.-mediated