1145
Later , he was involved in an unsuccessful attempt to negotiate the release , after a military coup , of Abubakar Tafawa Balewa , the overthrown Prime Minister of Nigeria .
 person: Abubakar Tafawa Balewa; location: Nigeria
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: Abubakar Tafawa Balewa; location: Nigeria