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Kish Air  received its air operator certificate ( AOC ) in 1990 after demonstrating its competence to the Civil Aviation authorities during its first year of operations thus becoming the first private company to receive its AOC from Civil Aviation of  Iran  .
 country of headquarters: Kish Air, Iran
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:
 country of headquarters: Kish Air, Iran