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Frosthardr has achieved some media notice : They appeared on the British 2007 documentary film Murder Music : A History of Black Metal , and are one of the featured bands on the 2008 summer documentary film titled Light in Darkness – Nemesis Divina focused on Christian black metal .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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