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And American leverage over Iran , never very significant since the Iranian revolution , is today at its lowest ebb in years in the wake of the U.S. involvement in Iraq and the election of the populist anti-American Mahmoud Ahmadinejad .
 Mahmoud Ahmadinejad, Iran
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:
 Mahmoud Ahmadinejad, Iran