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Stewart Coffin makes polyhedral puzzles in rare and beautiful woods ; George W. Hart works on the theory of polyhedra and sculpts objects inspired by them ; Magnus Wenninger makes " especially beautiful " models of complex stellated polyhedra .
 Stewart Coffin, George W. Hart, Magnus Wenninger
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Stewart Coffin, George W. Hart, Magnus Wenninger