空
=
工
+
穴
:
In front of the engine, Karl Koala found some very special cave paintings. Using steel beams he constructs a protective cover. He also installs air conditioning to make the best environment possible to preserve the cave paintings.
客
=
各
+
宀
:
Karl Marx (k) is receiving a visitor in the elevator's bathroom (e4). His guest is wearing a graduation cap (宀) and a dress made of stars (各).