柯
=
可
+
木
:
Karl Marx (k) is recycling a Christmas tree (木) in front of the elevator (e1). He uses the stem (柯) to make boards for his bed of nails (可), the needles of the tree as the nails for his bed of nails and the branches of the tree to make handles for his axes (柯).
can / may / able to / to approve / to permit / to suit / (particle used for emphasis) certainly / very
可
=
丁
+
口
:
Karl Marx (k) is challenging his abilities (可) in the elevator's living room (e3). He tries to force a nail (丁) into a mandarin (口), just by using his head. On top of that he tries to do so one thousand times, in order to create a bed of nails (mnemonic symbol for 可).
可
=
丁
+
口
:
Alternative mnemonic symbol: kebab, from the pronunciation "ke". Karl Marx (k) is preparing a kebab (mnemonic symbol for 可) in the elevator's living room (e3). He also skewers mandarins (口) on the long steel nails (丁) and will only allow (可) his guests to eat the rest of the kebab if they eat their mandarins first.
tree / wood / coffin / wooden / simple / numb / one of the eight categories of ancient musical instruments 八音[ba1 yin1]
木
=
八
+
十
:
Mnemonic symbol: a Christmas tree. Malte Monkey is putting up a Christmas tree (木) in the bathroom of the space station (Ø4). He's using a cross (十) as a base to put the tree on, and decorates the tree with eight-balls (八).