165689
Within that wide context , his work has focused primarily on developing the theoretical foundations for models and modeling tools , building on the Galerkin method approach , originally proposed by Boris Galerkin .
 person: Galerkin; person: Boris Galerkin
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: Galerkin, Boris Galerkin 
Answer:
 person: Galerkin; person: Boris Galerkin