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Mr. Huang implied that China had pressed the United States to deny access to Mr. Chen as the price for its support on curtailing the nuclear programs in Iran and North Korea and addressing the crisis in the Darfur region of Sudan .
 administrative division of country: Darfur, Sudan; country of administrative divisions: Sudan, Darfur; location contains: Sudan, Darfur
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: 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} 
 Entity Pairs:  Darfur, Sudan; Sudan, Darfur; Sudan, Darfur 
Answer:
 administrative division of country: Darfur, Sudan; country of administrative divisions: Sudan, Darfur; location contains: Sudan, Darfur