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From 1938 to 1939 , Mathewson attended the Command and General Staff College .
 person: Mathewson; organization: Command and General Staff College
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: Mathewson, Command and General Staff College 
Answer:
 person: Mathewson; organization: Command and General Staff College