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Davoud Ahmadinejad ( born 13 March 1950 in Aradan  Iran  ) is an Iranian politician and older brother of Iranian president  Mahmoud Ahmadinejad  .
 countries of residence: Iran, Mahmoud Ahmadinejad
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: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 countries of residence: Iran, Mahmoud Ahmadinejad