55720
And then the election of the reformist Mohammad Khatami as president of Iran in 1997 gave Washington and Tehran the cover they needed to walk back from the precipice .
 country of capital: Iran, Tehran; nationality: Mohammad Khatami, Iran; 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; Mohammad Khatami, Iran; Iran, Tehran 
Answer:
 country of capital: Iran, Tehran; nationality: Mohammad Khatami, Iran; location contains: Iran, Tehran