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The White House memo raises the possibility of using additional American troops to fill what it calls '' the four brigade gap '' in troops committed to the Baghdad operation in August -- a gap caused by Iraq 's new army committing only two of the six brigades it promised .
 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