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the real pie fleerz men like john sheltons who explore underground caves .
 the real pie fleerz men like john sheltons who explore underground caves, john sheltons, who, underground caves
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 the real pie fleerz men like john sheltons who explore underground caves, john sheltons, who, underground caves