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Cher at the Colosseum was a series of concerts by Cher at Caesars Palace in Las Vegas , Nevada .
 Cher, Cher, Las Vegas, Nevada
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Cher, Cher, Las Vegas, Nevada