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The northwest Iraqi city of Tal Afar has fallen to ISIS militants , according to an Iraqi general . http://t.co/rZhsP1J2p3
 Iraqi, Tal Afar, ISIS
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Iraqi, Tal Afar, ISIS