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
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Belgrade University; organization: University of Zagreb