What is the lack of wood in the five elements?

Cao Jianing Cao Jiacheng Cao Qijia Cao Jiahuan Cao Jiake Cao Mei Jia Cao Jiaqiao Cao Jialin Cao Jiaqing Cao Jiaxiang Cao Jiachu

Cao Jiamian, Cao Jiabai, Cao, Cao, Cao, Cao Jiahua, Cao, Cao.

Cao Jianan Cao Jiazhi Cao Jiazhen Cao Tanjia Cao Jiaju Cao Jiazha Cao Jiameng