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By the time the rebellion at crematorium IV had been suppressed , 212 members of the " Sonderkommando " were still alive and 451 had been killed .
 organization: Sonderkommando
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Sonderkommando