These four words are three of the twelve earthly branches and one of the heavenly stems.
Yin: the earthly branch ranks third, and the zodiac belongs to the tiger. Five elements belong to wood, Yang wood.
Noon: the seventh earthly branch, the zodiac is a horse. The five elements belong to fire.
G: The tenth in the sky, and the five elements belong to water.
Mao: It is the fourth earthly branch, and the zodiac belongs to rabbits. Five elements belong to wood. Yin Mu.
Good luck.