text: <START_QUESTION> I can be any size, shape, and i can have the same volume, perimeter, and area of anything. i can bend and flex and fit through anything. i can fly. and i can fall. i can be hot and cold. you can't hurt me. but i can kill you in a matter of minutes. i can weigh a gram, and i can weigh 500 tons. if i am big enough i can smush anything. i can be 2 inches tall. and 500 feet tall. who am i? <END_QUESTION>
  <ANSWER> simply water <END_ANSWER><|endoftext|>