According to Baidu Encyclopedia, the county does not produce grain, but jewelry is produced in the sea. The comparison with the address comes from "The History of the Later Han Dynasty Official Biography Meng Taste", which translates to that this county does not produce grain, but produces jewels in the sea, with toes as the boundary.

The original text of "The History of the Later Han Dynasty Official Biography and Meng Chang" is that Hepu County does not produce grain, seafood and jewelry, and often contacts with vendors to trade grain. At first, I slaughtered to prevent greed, cheated the people to find it, and did not know the truth. As a result, Zhu Sui gradually became a disciple of Jiaozhi County. So the journey is not enough, the characters have no capital and the poor starve to death. After tasting the official, it is easy to change the past and seek the interests of the people. Before he was 10 years old, he went back to Pearl, and everyone turned against his industry.