Ten days of work: A, B, C, D, E, Ji, G, Xin, people, ghosts.
Twelve earthly branches: Zi, Ugly, Yin, Mao, Chen, Si, Wu, Wei, Shen, You, Xu and Hai.
They belong to the five elements, namely gold, wood, water, fire and earth. (There is a relationship between them. )
The five elements of heavenly stems: A and B belong to wood, C and D belong to fire, Wuji belongs to soil, Geng Shen belongs to gold, but not to water.
Twelve earthly branches and five elements: Yin Mao belongs to wood, Si Wu belongs to fire, Shen You belongs to gold, Hai Zi belongs to water, and Chen Xu ugliness does not belong to soil.
Coexistence of five elements: wood makes fire, fire makes soil, soil makes gold, gold makes water, aquatic wood.
Five elements coexist: Mutuke, Tukeshui, Shuihoke, Huojinke, Jin Kemu.