Whose Long Mai did Yuan Tiangang break?

It is rumored that Yuan Tiangang cut off the 88 Long Mai that threatened Datang, but did not mention which ones.

Li Shimin was a wise emperor, but he also believed in the dialect of warlocks. He trusted Yuan Tiangang and Yuan Tiangang very much, and everything he predicted came true. In order to ensure the prosperity of the Tang Dynasty for thousands of years, Li Shimin asked Yuan Tiangang to ask around to see if there was any Long Mai besides Long Mai in the Tang Dynasty. It took Yuan Tiangang and Li ten years to detect 90 in the world, which will affect the fate of the Tang Dynasty.

Li Shimin asked Yuan Tiangang to cut off all 90 Long Mai, so that he could be emperor with peace of mind and his descendants could continue to be the king. But Yuan Tiangang only cut down 88 Long Mai, leaving two.

Extended data

Two Long Mai left by Yuan Tiangang:

Yuan Tiangang released a dragon vein in Taiyuan, Shanxi, between Luliang Mountain and Taihang Mountain. This Long Mai is Long Mai of Wu Zetian. At that time, Yuan Tiangang thought that although this Long Mai wanted to usurp Li Tang, it could protect the Tang Dynasty for 202 years. So I stayed, and later Wu Zetian proclaimed himself emperor.

There is also a Long Mai in Dangshan, Songzhou. After calculation, Yuan Tiangang thought that this Long Mai would destroy the Tang Dynasty in two hundred years. Yuan Tiangang believes that this is fate and cannot be cut. After consulting with Li, Yuan Tiangang thought that the dynasty would not last more than 300 years since ancient times. Even if the owner tried to overthrow the Tang Dynasty 200 years later, it would be 300 years later. Naturally, there would be corruption, so there would be no need to exist. So they released this Long Mai. The owner of this Long Mai is Zhu Wen, who overthrew the Tang Dynasty in 907 and established the "Back Beam", which enjoyed the country for 289 years.