50830
The Battle of the Bluegrass is the name of the rivalry between the Eastern Kentucky Colonels and the Western Kentucky Hilltoppers .
 Eastern Kentucky Colonels, Western Kentucky Hilltoppers
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Eastern Kentucky Colonels, Western Kentucky Hilltoppers