messages.role: user
messages.content: Provide the meaning for each of the following books. 
  Aristotle Economics,id=250. Aristotle Eudemian Ethics,id=251. Aristotle Metaphysics,id=252.
  Each answer should have 70 words. 
  Each answer must not include book title name or writer's name.
  Your answer should have the following format of the example.
  Example:
  UPDATE texts SET `description`="Lorem Ipsum." WHERE id=57;