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Several top Democrats , and also some Republicans , including Senator John McCain of Arizona , have called for tougher mileage requirements for S.U.V. 's , which must meet less stringent fuel economy guidelines because they are classified in the same category as light trucks , instead of with passenger cars .
 John McCain, Arizona
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:
 John McCain, Arizona