99414
1966 Coup In 1966 Northern Army leaders successfully carried out a counter coup against the incumbent Nigerian president Johnson Aguiyi-Ironsi , an Igbo .
 person: Johnson Aguiyi-Ironsi
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: Johnson Aguiyi-Ironsi 
Answer:
 person: Johnson Aguiyi-Ironsi