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Because later historians have attributed Catharina 's pendant to Pieter Soutman , it is unclear whether this portrait was first prepared by Hals , whose portrait of Paulus matches the pendant in many respects .
 Pieter Soutman, Hals
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Pieter Soutman, Hals