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Up until Tuesday , the police had seemed to discount any suggestion that the attackers might be suicide bombers -- an idea that would almost certainly deepen apprehensions among Britons used to perceiving such attacks as a phenomenon of the Middle East or Iraq .
 Middle East, Iraq
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:
 Middle East, Iraq