28204
The world is failing to provide promised aid to the people of southern Sudan , putting at risk a peace agreement that was hailed as a model for resolving ethnic wars afflicting Africa , the United Nations ' top relief official said Sunday . ''
 Africa, Sudan
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:
 Africa, Sudan