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A pupil of William James , whose Essays in Radical Empiricism he edited ( 1912 ) , Perry became one of the leaders of the New Realism movement .
 person: William James; person: Perry
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: William James, Perry 
Answer:
 person: William James; person: Perry