Who is the son in Wang Anshi's poems in Song Dynasty?

In Wang Anshi's poems in the Song Dynasty, Zichang refers to Wang Yuanze. By the end of June, 5438+October 2, 2023/KLOC-0, according to relevant public information, when Yuan Ze was a few years old, the guest had a deer and a deer in the same cage. The guest asked Yuan Ze who Roy was. What is a deer? Yuan Ze really didn't know. For a long time, he said that the deer was on the side and the deer was on the side. The guests are very strange. From the ink man waving a rhinoceros. The story goes like this: When Wang Cai, Wang Anshi's son, was a few years old, a guest sent a roe and a deer and locked them together. The guest asked, which is the roe and which is the deer. I have never seen these two rare animals. I looked at them for a long time and replied, that's just a deer next to a deer, that's just a deer next to a deer. The guest was very surprised after hearing this.