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Children parade through the Martyr 's Cemetery with headbands that read '' Hussein '' and stores sell metal chains that some people will use to beat themselves , all part of a period of public mourning that commemorates the killing of Imam Hussein , the Prophet Muhammad 's grandson , during a battle 1,300 years ago in Karbala , Iraq .
 location contains: Iraq, Karbala
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, Karbala 
Answer:
 location contains: Iraq, Karbala