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Greece's third-biggest bank  Eurobank EFG  said in a study that  Athens  is shielded by the common European currency whereas Argentina's decision to link its currency to the dollar was under constant and growing doubt .
 city of headquarters: Eurobank EFG, Athens
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:
 city of headquarters: Eurobank EFG, Athens