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Brigadier Charles Gordon Ross ( born 12 March 1892 , date of death unknown ) was a career soldier who served in both the Royal Air Force and the South African Air Force .
 person: Ross
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: Ross 
Answer:
 person: Ross