253493
He studied medicine at the University of Graz , and afterwards was an assistant to Anton Weichselbaum ( 1845-1920 ) at the clinic of pathological anatomy at the University of Vienna .
 organization: University of Graz; person: Anton Weichselbaum; organization: University of Vienna
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: University of Graz, Anton Weichselbaum, University of Vienna 
Answer:
 organization: University of Graz; person: Anton Weichselbaum; organization: University of Vienna