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Robert K. Tanenbaum is an attorney , author of crime novels , and the creator of a series of novels featuring Butch Karp and Marlene Ciampi , lawyers for the New York District Attorney 's office .
 K. Tanenbaum
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 K. Tanenbaum