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In the late 20th century , philosophers like Hamlyn , Rorty , and Wilkes have disagreed with Kahn , Hardie and Modrak as to whether Aristotle even had a concept of consciousness .
 Hamlyn, Rorty, Wilkes, Kahn, Hardie, Modrak, Aristotle
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hamlyn, Rorty, Wilkes, Kahn, Hardie, Modrak, Aristotle