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His career might have faded into complete obscurity had it not been for the development of eliminative materialism by fellow University of Manitoba philosophers Paul Churchland and Patricia Churchland in the 1970 s .
 University of Manitoba, Paul Churchland, Patricia Churchland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 University of Manitoba, Paul Churchland, Patricia Churchland