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Investigators are looking at the assets in France of  Gabon  's President  Omar Bongo  Sassou-Nguesso Burkina Faso President Blaise Compaore President Teodoro Obiang Ngeuma of Equatorial Guinea and Angolan President Jose Eduardo dos Santos .
 country of birth: Gabon, Omar Bongo
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:  Gabon, Omar Bongo 
Answer:
 country of birth: Gabon, Omar Bongo