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The lyrics – except for the title , which is repeated throughout the song , and the final two lines – consist of the first eight verses of the third chapter of the biblical Book of Ecclesiastes .
 Book of Ecclesiastes
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:
 Book of Ecclesiastes