How do constellations divide yin and yang? Then, how are the constellations related to Shuigong and Underground Palace divided?

Fire signs: Aries, Leo, Sagittarius

Earth signs: Taurus, Virgo, Capricorn.

Air signs: Gemini, Libra and Aquarius.

Water signs: Cancer, Scorpio and Pisces.

Front: Aries, Gemini, Leo, Libra, Sagittarius, Aquarius

Female: Taurus, Cancer, Virgo, Scorpio, Capricorn, Pisces.