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If the United States denies a visa for Mr. Ahmadinejad , the State Department said , it would be as much for his possible role in the taking of American hostages in Tehran in 1979 as for Iran 's nuclear activities today .
 country of capital: Iran, Tehran; location contains: Iran, Tehran
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:  Iran, Tehran; Iran, Tehran 
Answer:
 country of capital: Iran, Tehran; location contains: Iran, Tehran