On rivers, ponds, pools, wells and puddles: water gathers in Wangcun, wealth gathers in water, and there is a pool in front of the house, not afraid of the five kings. For people, lots with rivers, ponds, pools and puddles have always been prosperous. These places should have relatively broad vision and air circulation to adapt to the development of production and human survival. This is useful, beneficial and good. There are rivers, ponds and wells, and children must pay attention to safety first. "The ponds in front of the house and behind the house are connected, and the young lang will die." This is the negative part of water. Here, the statement about Wang Cai is a relatively uncertain function word, but the statement about security is a substantive content word and a direct problem.