What's the difference between yin and yang in the sixth house?

Eight palaces: In the prediction of six hexagrams, sixty-four hexagrams are distributed in eight palaces, and each palace is guarded by eight pure hexagrams, which is the first hexagrams in this palace and is divided into the second hexagrams, the third hexagrams, the seventh hexagrams and the eighth eight diagrams. Eight pure hexagrams are: Gangua, Kangua, Gengua, Zhengua, Xungua, Ligua, Kungua and Dugua, which are called Gangong, Kangong, Gengong, Gong Zhen, Gong Xun, Gong Li, Gong Kun and Dugong respectively. This is the six hexagrams and eight palaces. Except for the hexagrams on duty in the Eight Palaces, the other seven hexagrams are all derived from the specific change law of the hexagrams on duty, and the five elements of the hexagrams in the Eight Palaces are also determined by the hexagrams on duty. Eight palaces of Yin and Yang: dry palace is Yang, five disciples are gold, Kangong is Yang, five disciples are water, gen palace is Yang, five disciples are earth, Zhen palace is Yang and five disciples are wood, which is called Siyang Palace; Xun Palace is yin, five moves are wood, leaving the palace is yin, five moves are fire, Kun Palace is yin, five moves are earth, the palace is yin and five moves are gold. This is called Yin Si Palace.