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They pointed out that the error amounted to about 0.5 % , whereas International Atomic Energy Agency regulations permit a discrepancy up to 1 % as the amount of plutonium recovered from the reprocessing process never precisely matches the pre-process estimates .
 International Atomic Energy Agency
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:
 International Atomic Energy Agency