Zi Collection, Upper Volume, Page 10, Entry 03 "Boat's large side timbers" — Guangyun (Guangyun) and Jiyun (Jiyun) say the pronunciation is tu nong qie, sounding the same as "dong" (dong). Yùpiān (Yùpiān) explains it as large timbers on the sides of a boat. Guangyun (Guangyun) says it is a place for tying boat ropes. Yùnhuì (Yùnhuì) says it is a short wooden post for tying a boat. Also, Jiyun (Jiyun) and Yùnhuì (Yùnhuì) say the pronunciation is tu hong qie, sounding the same as "tong" (tong). The meaning is the same. Verification: [Yùpiān (Yùpiān): large timbers on the left and right. Guangyun (Guangyun): place where ropes are tied. Yùnhuì (Yùnhuì): place where mooring posts are tied.] Carefully noting the original text, the character "boat" (chuán) has been added to all three instances.