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In 1867 he won a prize offered by the Academy of Moral and Political Sciences with an essay entitled L'Influence de état moral et intellectuel des populations ouvrières sur le taux des salaires .
 Sciences, des, des
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Sciences, des, des