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A central part of the American effort in Iraq has been training Iraqis to take responsibility for the country 's security , and on Thursday Iraq 's Sixth Army Division formally took control of four districts in northern and western Baghdad from the American Third Infantry Division .
 Iraq, Baghdad; Iraq, Baghdad; Iraq, Baghdad; Iraq, Baghdad
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 Iraq, Baghdad; Iraq, Baghdad; Iraq, Baghdad; Iraq, Baghdad