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Falling asleep in this armchair draws Jack into a sometimes amusing , sometimes nightmarish dream world populated by sky pirates crewing winged sailing ships , winged reptilian " fromborks " , mad sorcerers dueling in mechanical demons , tap dancing marsh wizards who assist Jack in his negotiations with the Lords of Death and more .
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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:
 None