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Dionisis Hionis economist and professor at the  Democritus University of Thrace  told Xinhua that if the trend could not be reversed in good time  Greece  could well end up being a member of the two-speed Economic and Monetary Union ( EMU ) .
 country of headquarters: Democritus University of Thrace, Greece
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: Democritus University of Thrace, Greece