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Secretary General Kofi Annan and the Security Council urged Eritrea to '' immediately reverse '' its decision grounding United Nations helicopters in its airspace , saying the action threatened the safety of peacekeepers and risked reopening the two-year border war with Ethiopia that caused 100,000 deaths before ending in a peace agreement in 2000 .
 Kofi Annan, United Nations
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:
 Kofi Annan, United Nations