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During the 1970 s and 1980 s , social constructionist theory underwent a transformation as constructionist sociologists engaged with the work of Michel Foucault and others as a narrative turn in the social sciences was worked out in practice .
 person: Michel Foucault
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
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Text: {0} 
Answer:
 person: Michel Foucault