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Club Social y Deportivo  San Antonio Unido  usually referred to as SAU is a football club located in the port city of San Antonio  Chile  situated in the Region .
 country of headquarters: San Antonio Unido, Chile
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: San Antonio Unido, Chile