249768
He has been a professor at the Graduate School of Planning of the UPR and since 1989 has served as professor of economics at the Site of the UPR Mayaguez , an institution in which he holds the post of professor and has directed the Department of Economics .
 None
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:  
Answer:
 None