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Estonia  and Scandinavian airline SAS on Friday reached an agreement giving the state a 90 percent stake in  Estonian Air  while SAS will hold 10 percent a government statement said .
 country of headquarters: Estonia, Estonian Air
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Estonia, Estonian Air 
Answer:
 country of headquarters: Estonia, Estonian Air