Guangyun uses the characters "yu" and "ju" for fanqie, Jiyun and Zhengyun use "niu" and "ju" for fanqie, and Yunhui uses "yu" and "ju" for fanqie. Pronounced yu (level tone). "Erya, Shixu" says: Horses with two white eyes are called nian. [Note] Says: Like fish eyes. Lu Tiandian says: It is the current ring-eyed horse, the lowest grade among horses. Also used as the character "yu". "Book of Odes, Lu Song" says: There are nian horses and yu horses. "Zishu" writes it as. "Leipian" sometimes writes it as.