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Selfridge High School is a public high school located in Selfridge , North Dakota on the Standing Rock Indian Reservation .
 organization: Selfridge; location: Selfridge , North Dakota
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: Selfridge, Selfridge , North Dakota 
Answer:
 organization: Selfridge; location: Selfridge , North Dakota