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This system is being created by several members of the Rorschach Research Council , a group established by John Exner to advance the research on the Comprehensive System , the most widely used scoring system for the Rorschach .
 person: John Exner
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: John Exner 
Answer:
 person: John Exner