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The Head of state of The republic of  Cameroon  are Mbida Prime Minister of eastern Cameroon between 1957 and 1958 Ahmadou Ahidjo President of the federal Republic of Cameroon 1960-1972 and  Paul Biya  1982-present President of the Republic of Cameroon .
 countries of residence: Cameroon, Paul Biya
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: Cameroon, Paul Biya