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President Hu Jintao of China said Friday that his political concept of maintaining the '' advanced nature '' of the Communist Party was the key to its survival , while warning that corruption threatened to undermine its hold on power .
 Hu Jintao, China
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:
 Hu Jintao, China