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Greifelt was tried at Nuremberg for war crimes by a US Military Tribunal between 20 October 1947 and 10 March 1948 .
 person: Greifelt
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: Greifelt 
Answer:
 person: Greifelt