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Kees van der Pijl ( born 15 June 1947 , Dordrecht ) is a Dutch political scientist who currently is Professor of International Relations at the University of Sussex .
 Kees van der Pijl, Dordrecht, University of Sussex
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kees van der Pijl, Dordrecht, University of Sussex