What is the definition of qualifications?

It is said that from the Qin Dynasty, surnames were combined with surnames, and the Han nationality was first popular, and it began to appear in the Wei and Jin Dynasties. Especially at the end of the Song Dynasty, it was very popular for feudal families, large and small, to organize genealogies and to name them after their peers. A line symbol is a restriction on the use of characters in names of all generations. The Confucian school of generations started from the Fourth Meeting, and he stipulated that the next generation should use the word "gram". In the next generation, they are used in names in turn: Xi, Yan, Cheng, Hong, Wen, Zhen, Shang, Yan, Xing, Yu, Chuan, Guang, Zhao, Xian, Qing, Fan, Detailed, Ling, De, Wei, Hang, You, Qin, Shao, Nian and Xian.