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When the hall was filled with paintings he became a pupil of Jan Davidsz . de Heem , until 1635 living in Leiden .
 Jan Davidsz . de Heem, Leiden
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 Davidsz . de Heem, Leiden