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Jon Wolfsthal of the Center for Strategic and International Studies said American uncertainty extends to the relationship of President Mahmoud Ahmadinejad , the firebrand president since August , and Ayatollah Ali Khamenei , the supreme leader , and their respective goals . ''
 person of company: Jon Wolfsthal, Center for Strategic and International Studies
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 person of company: Jon Wolfsthal, Center for Strategic and International Studies