Who are the "generals of heaven, earth and man" in the Romance of the Three Kingdoms?

In the yellow turban insurrectionary, Zhang Bao was called "General Tian", and Sean was called "General Man".

Extended description:

Opening Angle: Julu (Qin ruled Pingxiang, Hebei Province today, and the Eastern Han Dynasty ruled Ningjin, Hebei Province today). At the end of the Eastern Han Dynasty, China was the leader of the Yellow Scarf Army and the founder of Taiping Road. In the first year of Zhong Ping (184), Zhang Jiao called himself "the general god" and led the masses to launch an uprising with the slogan of "Heaven dies, Huang Tian should stand, and the world is prosperous at the age of 60", which was known as the "Yellow Scarf Uprising" in history. Soon, Zhang Jiao died of illness, and the insurgents were quickly suppressed by the Han Dynasty.

Zhang Bao: A native of Julu (now Pingxiang, Hebei Province), he was one of the leaders of the Yellow Scarf Uprising in the late Eastern Han Dynasty, the brother of Zhang Jiao and the brother of Sean. In the first year of Zhong Ping (184), he rebelled with his younger brother, Zhang Jiao, and was called "local general". Later, Zhang Bao was defeated by Huang Fusong and Guodian in Quyang (now Jinzhou, Hebei) and was killed.

Sean: A native of Julu (now Hebei Julu), one of the leaders of the Yellow turban insurrectionary in the late Eastern Han Dynasty, and his third brother. In the first year of Zhong Ping (184), he rebelled with his younger brother and was called "the people's general". When Huang Fusong, a left corps commander sent by the imperial court, attacked him, he led an army to fight back in Guangzong (now wei county, Hebei). Later, due to vigilance and negligence, Huang Fusong led the army to attack at night, and the insurgents he led quickly went into battle. The insurgents were defeated and Sean died together.

Opening Angle-Baidu Encyclopedia