23192
The Sadr militia , known as the Mahdi Army , remains a force that could disrupt heavily Shiite southern Iraq as well as the huge Sadr City slum in northeast Baghdad that is Mr. Sadr 's power base .
 country of capital: Iraq, Baghdad; location contains: Iraq, Sadr City; location contains: Iraq, Baghdad; location contains: Baghdad, Sadr City
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: 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} 
 Entity Pairs:  Iraq, Baghdad; Iraq, Sadr City; Iraq, Baghdad; Baghdad, Sadr City 
Answer:
 country of capital: Iraq, Baghdad; location contains: Iraq, Sadr City; location contains: Iraq, Baghdad; location contains: Baghdad, Sadr City