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He shows his true form , a grotesque , terrifying monster , with yellow and green skin , four legs , and sharp teeth , So the children have him go through a series of transformations , mostly of celebrities or famous television characters , until Cartman suggests " a taco that craps ice cream " .
 person: Cartman
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Cartman