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They say that because Sudan has blocked a United Nations force from entering Darfur to protect the 2.5 million people forced from their homes there and in eastern Chad , they have a duty to stop attacks on non-Arab tribes . ''
 country of administrative divisions: Sudan, Darfur; location contains: Sudan, Darfur; administrative division of country: Darfur, Sudan
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:  Sudan, Darfur; Sudan, Darfur; Darfur, Sudan 
Answer:
 country of administrative divisions: Sudan, Darfur; location contains: Sudan, Darfur; administrative division of country: Darfur, Sudan