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Hermann Schilli , the initiator of the open air museum of Vogtsbauernhof distinguishes seven types of Black Forest house : Design The house combines both living and working rooms , as well as animal stalls , under one roof .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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