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Stan and Cartman kill the other zombies with chainsaws and Stan hesitates to kill a zombified Wendy .
 Stan, Cartman, Stan, Wendy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Stan, Cartman, Stan, Wendy