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Cardinal Joseph Zen Ze-kiun of Hong Kong , who has worked as an intermediary between the Vatican and Beijing , had warned on Tuesday that if China proceeded with the installation of Liu Xinhong , it would be very hard for the Vatican to continue diplomatic talks .
 China, Hong Kong; Hong Kong, China; Beijing, China; China, Beijing; China, Beijing; China, Hong Kong; China, Beijing
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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} 
Answer:
 China, Hong Kong; Hong Kong, China; Beijing, China; China, Beijing; China, Beijing; China, Hong Kong; China, Beijing