In the middle, a child holds one end of a rope. The other end of the rope is connected to a wooden pole, which supports a sieve. Beneath the sieve are scattered some grains of rice.,Su Er, despite being young, ran very fast. As he ran, he turned and made faces at his grandfather, saying, "Old man, this alchemy furnace is a family heirloom, so it will eventually be mine anyway. What difference does it make if I get it sooner or later",He didn't intend to let Su Shier know about this until the very last moment.。