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Herman Kahn of the RAND Corporation criticized to an assembled group of SAC officers their war plan ( SIOP-62 ) .
 Herman Kahn, RAND Corporation, SAC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Herman Kahn, RAND Corporation, SAC