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He built a good reputation in philosophic circles and in 1645 was chosen with Descartes , Gilles de Roberval and others to referee the controversy between John Pell and Longomontanus over the problem of squaring the circle .
 person: Descartes; person: Gilles de Roberval; person: John Pell; person: Longomontanus
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: Descartes, Gilles de Roberval, John Pell, Longomontanus 
Answer:
 person: Descartes; person: Gilles de Roberval; person: John Pell; person: Longomontanus