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At Carnegie Mellon University , researchers found that the same " speaker " with accuracy rates of 94 % one day can see that rate drop to 48 % a day later ; between two different speakers it drops even more .
 Carnegie Mellon University
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:
 Carnegie Mellon University