What are the poems about oil?

Oil seller

Author: Ouyang Xiu

Chen Kang Su Gong is good at shooting, and chinese odyssey and Gong are also proud of it. Tasting and shooting in the garden at home, some oil sellers unload their bags and stand still, but they don't go for a long time. See its arrow nine times out of ten, but a little clumsy.

Kang Su asked, "Do you know how to shoot? Am I a good marksman? " . Weng said, "No one else, I know my hands well." Kang Su said angrily, "Er 'an dares to shoot lightly!" Weng said, "I know it by my oil. "But take a gourd and put it on the ground, cover its mouth with money, and let it drain with oil. The money goes into the hole, but the money is not wet. Because he said, "I have nothing but my hands." "Kang Su laugh and send it.

What's the difference between this and Johnson's so-called solution?