For the standards of Liu Ren Tianhou and Xuanwu, please refer to the Yellow Book.

Mr. Yang is also a famous master of six benevolence. According to his textual research, the Xuanwu family originated from the Complete Works of Six Benevolents, which may be a mistake. It should be based on the fact that Jinkou Xuanwu's family is in Renzi. The noble left acts as rattan snake, suzaku, Liuhe, Gouchen and Qinglong; Positive behaviors are Tianhou, Taiyin, Xuanwu, Taichang and Baihu; The second and third positions on the left are the south and east positions of the four positive positions; The moon in the right position is the west position, and Xuanwu should also be the north position in the right position. The first one on the left of the noble is that Teng snake is in the southeast of Bagua, and if Tian Hou's family is in Guihai, it is symmetrical. When I measured the number, I mainly measured it with Xuanwu standard, and the number was nine. But sometimes it is more reasonable to use four (standard hai). Therefore, there is this question.