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It was notable for seeing the loss to the Kriegsmarine ( KM ) of , with her commander KL Günther Prien , the person responsible for the sinking of two years previously .
 Kriegsmarine, KL, Günther Prien
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kriegsmarine, KL, Günther Prien