Wang’s inscription at the Stone Ox Grotto, carved between late 1051 and early 1054. The four vertical lines of the poem, the height of a small child, are arranged left to right, following the direction of the artesian stream at the bottom (about a foot wide and four inches deep). Two-word signature on the right, “Duke of Jing,” shows signs of having replaced a three-word signature (presumably “Wang Anshi”) that was ground off sometime after 1080, when he received the title.