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His father Mr. Kithuku then working for the Kenya Railway moved back to his ancestral village of Mulango in Kitui when Mbilu was two years old .
 organization: Kenya; location: Kitui; person: Mbilu
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: Kenya, Kitui, Mbilu 
Answer:
 organization: Kenya; location: Kitui; person: Mbilu