fifth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / fifth in order / letter "E" or Roman "V" in list "A, B, C", or "I, II, III" etc / penta
戊
=
厂
+
戈
:
Mnemonic symbol: a fifth wheel recreational vehicle.
戊
=
厂
+
戈
:
Willy Walrus set up his fifth wheel RV in the space station's bathroom, and in front of it, his only source of food: a chocolate factory. Because both are so precious he guards them with a spear.