250230
The elections saw Mamadou Tandja become President of Niger in December 1999 .
 person: Mamadou Tandja
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Mamadou Tandja 
Answer:
 person: Mamadou Tandja