円

冂 = 丨 + ㇆ : Kind of looks like a map. Zeus found a secret map that tells the location of a golden dinosaur bone in front of the engine, so he took a plough and digged up everything. He actually found a couple of dinosaur bones, but not a golden one.

丄 = 丨 + 一 : Mnemonic symbol: a 90 degree corner clamp, because in mathematics the 丄 symbol denotes a perpendicular connection. Sherlock Holmes (sh) is renovating the anglepods bathroom (ang4) and joining a flute (一) to the top (丄) of a dinosaur bone (丨) using a 90 degree angle clamp (丄).