1929
In 1959 , he graduated in economics at the Catholic University of Leuven .
 organization: Leuven
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: Leuven 
Answer:
 organization: Leuven