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Doxa , a philosopheme Plato tended to oppose knowledge to doxa , which led to the classical opposition of error to truth , which has since become a major concern in Western philosophy .
 person: Plato
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Plato