text: <START_QUESTION> I herald the darkness which descends on all creatures; you will know my approach by moans and wracked features. i visit the hippo, hyena, and horse, but never go near snails and spiders, of course. i would circle the globe, leaping one to the other, should all the world's people ever clasp hands together. what am i? <END_QUESTION>
  <ANSWER> yawn <END_ANSWER><|endoftext|>