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Heidegger commented that " the reversal of a metaphysical statement remains a metaphysical statement " , meaning that he thought Sartre had simply switched the roles traditionally attributed to essence and existence without interrogating these concepts and their history he had claimed to have done .
 person: Heidegger; person: Sartre
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Heidegger, Sartre 
Answer:
 person: Heidegger; person: Sartre