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He served as president of the American Folklore Society in 1973 - 4 , of the Linguistic Society of America in 1982 , of the American Anthropological Association in 1983 - the last person to have held all three positions .
 American Folklore Society, Linguistic Society of America, American Anthropological Association
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 American Folklore Society, Linguistic Society of America, American Anthropological Association