6968
 An aide to Ms. Mandela , the former wife of Nelson Mandela , told a South African newspaper , Beeld , on Tuesday that '' she will keep her promise to ensure that Williams is buried in South Africa . '' 
 Nelson Mandela, South Africa
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 Nelson Mandela, South Africa