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Baghdad holds that the Iraq-U.N. memorandum of understanding on partial oil sales signed last June does not specify how many foreign observers should be stationed in Iraq .
 Iraq, Baghdad, Iraq-U.N.
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:
 Iraq, Baghdad, Iraq-U.N.