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He holds the distinction as the oldest living and earliest serving former Prime Minister following the death of Piet de Jong in July 2016 and his premiership is consistently considered both by scholars and the public to have been average .
 Piet de Jong
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:
 Piet de Jong