Write a correct answer for the question. You should reason about prototypical situations and provide the correct answer. Avoid answers that provide incomplete justification for the question.

Example Input: name something dogs can do for hours at a time.
Example Output: sleep

Example Input: name a type of book that people do not read for pleasure.
Example Output: dictionary

Example Input: in today's world, name something that helps people stay "forever young."
Example Output:
plastic surgery