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Mauritania  has been ruled since August 2005 by junta leader Col.  Ely Ould Mohamed Vall  who led a bloodless coup that ousted ex - president Maaoya Sid ' Ahmed Ould Taya and ended a 21-year dictatorship .
 countries of residence: Mauritania, Ely Ould Mohamed Vall
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
 Entity Pairs:  Mauritania, Ely Ould Mohamed Vall 
Answer:
 countries of residence: Mauritania, Ely Ould Mohamed Vall