9661
A number of other regional organizations also provide the basis for further integration : the Union State of  Russia  and Belarus the  Eurasian Economic Community  of Russia Belarus and Kazakhstan the Collective Security Treaty Organisation consisting of Armenia Belarus Kazakhstan Kyrgyzstan Russia and Tajikistan and the Commonwealth of Independent States comprising most of the post-Soviet countries .
 country of headquarters: Russia, Eurasian Economic Community
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: Russia, Eurasian Economic Community