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Beijing has not invited Taiwan 's president , Chen Shui-bian , to visit the mainland and has ruled out talks with him unless he accepts the '' one China '' formula under which Beijing claims sovereignty over Taiwan , a condition Mr. Chen has rejected .
 China, Taiwan; China, Beijing; China, Beijing; China, Beijing; China, Taiwan; Beijing, China; Taiwan, China; Beijing, China; China, Beijing; Taiwan, China; 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:
 China, Taiwan; China, Beijing; China, Beijing; China, Beijing; China, Taiwan; Beijing, China; Taiwan, China; Beijing, China; China, Beijing; Taiwan, China; China, Beijing; China, Beijing