5843
A trip to Guinea by  Nigeria  's former military ruler  Ibrahim Babangida  as regional mediator was cancelled Friday because Guinean authorities had not approved it an official said .
 countries of residence: Nigeria, Ibrahim Babangida
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: Nigeria, Ibrahim Babangida