204568
Mater takes his nickname from construction superintendent and die-hard NASCAR fan Douglas " Mater " Keever , who provides the voice of one of the RV 's watching the big race ( " Well dip me in axle grease and call me slick ! " ) .
 NASCAR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 NASCAR