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Ndulu made the remarks on Thursday at the 15th Conference of Financial Institutions in Arusha the headquarters of the  East African Community  ( EAC ) in northeastern  Tanzania  under the theme of Towards the East African Monetary Union and the Implications to Financial Stability .
 country of headquarters: East African Community, Tanzania
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: East African Community, Tanzania