15157
Liberia's President Ellen Johnson Sirleaf was there and also Col.  Ely Ould Mohamed Vall  the leader of a military junta which led a coup in  Mauritania  two years ago then turned over the country to a democratically elected government .
 countries of residence: Ely Ould Mohamed Vall, Mauritania
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: 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} 
Answer:
 countries of residence: Ely Ould Mohamed Vall, Mauritania