Sentences about the jingles of ninth-rate, ninth-rate and ninth-rate students.

Shangjiuliu: one Buddha, two immortals, three sages, four officials, five senses, six phases, seven monks, eight roads, and nine Zhuang days;

Zhong Jiuliu: one storyteller, two doctors, three diviners (fortune-telling), four chess players (chess players), five painters (painters), six officials (ranks), seven horizontal (lobbyists), eight righteous (chivalrous) and nine fishermen;

Xiajiuliu: One (singing opera), Two Blowers (drummers), Three Circus, Four Haircuts (Haircuts), Five Pools (Bathrooms), Six Back Rubbing, Seven Pedicures, Eight Pairs (Breeding) and Nine Prostitutes.

The source of nine streams:

In ancient times, the social stratum was divided into nine grades, which actually meant "upper, middle and lower". Later, with the complexity of social division of labor, the saying of "upper nine streams, middle nine streams and lower nine streams" was derived.

The figures pointed out by these schools are the general names of all walks of life. It also includes various small industries in this industry. In ancient times, society was divided into various classes. It should be noted that this classification method, which divided people into one class in that feudal era, was the dregs of feudal thought. Even in ancient times, it was just an ordinary culture and was not respected by the mainstream literati class.