The sun is dominant, and the other four are the position of the god of food, which is also the temporary official position of the zodiac.
For example, A takes the fire of C as the god of food, and C takes the position of Lu as the secretary, that is, when the sun is dry, A will lead wenchang star. B takes Ding as the god of food, and Ding's position is noon, so wenchang star is seen at noon every day.