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When the children realize that all this has happened before , they come to the conclusion that they are stuck in a " repeat " , they and Chef decide to do something about the anal probe Cartman has ; they first see a proctologist , then a scientist .
 person: Chef; 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: Chef; person: Cartman