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Later , he was appointed Minister of Police Affairs in the cabinet of President Olusegun Obasanjo after the return to democracy in May 1999 .
 person: Olusegun Obasanjo
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Olusegun Obasanjo