1104
Founded in March 2002  China  UnionPay is an association for China's banking card industry operating under the approval of the People's Bank of China (  PBOC  central bank of China ) .
 country of headquarters: China, PBOC
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: China, PBOC