37015
At 6:30 a.m. on Wednesday , insurgents set off a powerful car bomb in central Baghdad several blocks east of Firdos Square , where Iraqis pulled down a status of Saddam Hussein on April 9 , 2003 .
 location contains: Baghdad, Firdos Square
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, Firdos Square 
Answer:
 location contains: Baghdad, Firdos Square