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Fox enlisted in the United States Marine Corps Reserve on May 4 , 1939 .
 person: Fox; organization: United States Marine Corps Reserve
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: Fox, United States Marine Corps Reserve 
Answer:
 person: Fox; organization: United States Marine Corps Reserve