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Albert Hendrik " Benk " Korthals ( born October 5 , 1944 ) is a Dutch politician of the People 's Party for Freedom and Democracy .
 Benk, Korthals, Dutch, People 's Party for Freedom and Democracy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Benk, Korthals, Dutch, People 's Party for Freedom and Democracy