領工

领 = 令 + 页 : Li Qingzhao wants to explore the catacombs below engine, which can only be accessed from inside engine. Because it is so dangerous down there she has to hand in a piece of paper with her name and gets back a name-tag which she has to clip to her dog collar so that she can be identified should something go wrong.

工 = 二 + 丨 : Mnemonic symbol: a steel beam, since 工 looks like the cross section of a steel beam.

Gitta Giraffe (gu) is working a shift in front of the engine ((e)ng1). Her job is to melt dinosaur bones (丨) so that they can be disposed off easily. To melt the bones, she is shorting a huge capacitor (二) with a steel beam (工) which consequently heats up to a bright glow. Using the glowing hot steel beam she can melt the dinosaur bone easily.