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Bands such as Mayhem , Gorgoroth , and Watain are noted for their controversial shows , which have featured impaled animal heads , mock crucifixions , medieval weaponry and band members doused in animal blood .
 Mayhem, Gorgoroth, Watain
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Mayhem, Gorgoroth, Watain