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Russia Minister Said to Visit China At a time when China and Russia are facing far-reaching choices about their oil trade , Russia 's energy minister , Viktor B. Khristenko , made a quiet trip to Beijing over the weekend , people close to the industry said .
 Beijing, China; China, Beijing; China, Beijing; 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:
 Beijing, China; China, Beijing; China, Beijing; China, Beijing