139435
Jan Oosterhaven ( born 19 June 1945 , Gouda ) is a Dutch economist , who currently is Professor of Spatial Economics at the University of Groningen .
 Jan Oosterhaven, Gouda, University of Groningen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Jan Oosterhaven, Gouda, University of Groningen