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The family , which now has 19 members and remains unparalleled even in the world of high-quality counterfeits , also includes two $ 50 notes : C-20000 , a small-head supernote that appeared in Athens , in June 1995 ; and C-22160 , a big-head version , first sighted in Sofia , Bulgaria .
 administrative division of country: Sofia, Bulgaria; country of capital: Bulgaria, Sofia; country of administrative divisions: Bulgaria, Sofia; location contains: Bulgaria, Sofia
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Sofia, Bulgaria; Bulgaria, Sofia; Bulgaria, Sofia; Bulgaria, Sofia 
Answer:
 administrative division of country: Sofia, Bulgaria; country of capital: Bulgaria, Sofia; country of administrative divisions: Bulgaria, Sofia; location contains: Bulgaria, Sofia