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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 .
 title of person: President, Paul Biya
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:  President, Paul Biya 
Answer:
 title of person: President, Paul Biya