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Some of today 's '' coolest '' Democratic mayors -- Baltimore 's Martin O'Malley , Philadelphia 's John Street , Detroit 's Kwame Kilpatrick -- have failed to reform bloated bureaucracies and dysfunctional schools , and they have n't made much progress in improving aging ports , roads and sanitation systems .
 place of birth: Kwame Kilpatrick, Detroit
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:  Kwame Kilpatrick, Detroit 
Answer:
 place of birth: Kwame Kilpatrick, Detroit