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The K of D , an Urban Legend is a play by Laura Schellhardt , which premiered at Woolly Mammoth Theatre Company in 2008 .
 Woolly Mammoth Theatre Company
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Woolly Mammoth Theatre Company