A “Record” of this good was written by the creator of a “dragon tribute” type of it, the famous calligrapher Cai Xiang (“tsai sh’YAHNG”). A network of trade routes known as the “Southern Silk Road” was named for horses and this good. (10[1])Emperor Huizong (“hway-dzong”) of Song wrote an influential “Grand Treatise” on this good, in which he laid out criteria for “competitions” focused on this good. The Rinzai monk Eisai (“AY-sigh”) is said to have introduced this good to Japan from China, (10[1])whose ritualized preparation of it is known as gongfu. Lu Tingcan wrote a “sequel” to a “Classic” about this good by Lu Yu, which details its mythical discovery by Shennong after looking into his pot of water. For 10 points, in China and Japan, what drink is presented in elaborate namesake ceremonies? (10[1])■END■