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César Thomson ( 18 March 1857 – 21 August 1931 ) was a Belgian violin ist , teacher and composer .
 person: César Thomson; location: Belgian
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: César Thomson, Belgian 
Answer:
 person: César Thomson; location: Belgian