4556
This episode begins almost identically to the very first " South Park " episode , " Cartman Gets an Anal Probe " , with Cartman arriving and talking about a dream where he was abducted by aliens .
 Cartman
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cartman