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United Nations relief officials said on Saturday the fighting in Arbil in northern Iraq was between rival Kurdish factions and they were not aware of any Iraqi military advance on the city .
 location: Iraq; organization: United Nations; location: Arbil; else: Iraqi; else: Kurdish
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
Answer:
 location: Iraq; organization: United Nations; location: Arbil; else: Iraqi; else: Kurdish