61237
Via Bertrand Russell 's logicism , reducing mathematics to logic , physics ' mathematical formulas would be converted to symbolic logic .
 person: Bertrand Russell
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: Bertrand Russell 
Answer:
 person: Bertrand Russell