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Obasanjo will continue his campaign to reduce Nigeria ' s foreign debt ( in excess of 30 billion dollars ) .
 geographical social political: Nigeria; person: Obasanjo; person: his
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 geographical social political: Nigeria; person: Obasanjo; person: his