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She said Mr. Williams , who was visited by Winnie Madikizela-Mandela at the prison in 1999 , requested that he be buried under a yohimbe tree in South Africa or that his ashes be scattered over the '' Blue Nile River , to feed the fishes and other organisms . ''
 nationality: Winnie Madikizela-Mandela, South Africa
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "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} 
Answer:
 nationality: Winnie Madikizela-Mandela, South Africa