Jeong Cheol
The following two poems are an exchange between Jeong Cheol and the gisaeng Jinok. Jeong is playing on Jinok's name, which means Genuine Gem. First he calls her a gem (ok; 玉), then suggests she is an imitation (beon-ok; 燔玉) and finally finds her to be genuine (jin-ok; 眞玉).