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Certain analysts such as Kenneth R. Timmerman and Paul R. Pillar have also claimed that the group hires protesters .
 Kenneth R. Timmerman, Paul R. Pillar
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Kenneth R. Timmerman, Paul R. Pillar