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Lieutenant General Keith Coster I.C.D. , O.B.E ( 19 April 1920 - 5 June 2012 ) was a South African army officer who rose to command the Rhodesian Army from 1968 to 1972 .
 person: Keith Coster
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: Keith Coster 
Answer:
 person: Keith Coster