53403
The American command has dedicated more than 2,000 American troops and more than 1,000 members of Iraqi security forces to the search operation , which has focused on Sadr City and the central Baghdad neighborhood of Karrada , where Specialist Taie was taken .
 location contains: Baghdad, Sadr City; neighborhood of: Karrada, Baghdad
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:  Baghdad, Sadr City; Karrada, Baghdad 
Answer:
 location contains: Baghdad, Sadr City; neighborhood of: Karrada, Baghdad