61488
In a list of nontechnical books he has read , computer scientist Donald Knuth referred to this book as " perhaps the greatest 20th century novel " .
 Donald Knuth
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:
 Donald Knuth