3971
From 1920 , he taught in the Philosophy Faculty in Skoplje ( then part of Belgrade University ) , then moved to the University of Zagreb , where he taught ancient history from 1924-1959 .
 organization: Belgrade University; organization: University of Zagreb
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: Belgrade University, University of Zagreb 
Answer:
 organization: Belgrade University; organization: University of Zagreb