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In July 1219 Erard 's cousin , Hervé , Count of Nevers , confirmed a donation Erard had made to the Teutonic Knights .
 Erard, Hervé, Erard, Teutonic Knights
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Erard, Hervé, Erard, Teutonic Knights