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Philosophers who have worked in this area include Bicchieri ( 1989 , 1993 ) , Skyrms ( 1990 ) , and Stalnaker ( 1999 ) .
 person: Bicchieri; person: Skyrms; person: Stalnaker
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: Bicchieri, Skyrms, Stalnaker 
Answer:
 person: Bicchieri; person: Skyrms; person: Stalnaker