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Notable graduates of the NIPSS are General  Ibrahim Babangida  the former Nigerian Head of State and Comrade Ajayi Olusegun the former Director General of  Nigeria  Policy Study and Mallam Nuhu Ribadu the anti-corruption campaigner .
 employee of: Ibrahim Babangida, Nigeria
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:
 employee of: Ibrahim Babangida, Nigeria