莫不是

莫 = 艹 + 日 + 大 : Mnemonic symbol: 莫扎特, Mozart. Mozart (莫) is giving a concert in the observatory's bathroom (o4). He is sourroundes by sheets of artificial lawn (艹), and since there is none who (莫) is allowed to touch the lawn, it is guarded by a big robot (大). Mahatma Gandhi (m) is in the audience and in the middle of the concert he jumps on the lawn to protest against the sun (日), who is also in the audience, because the sun is responsible for draughts which threaten the farmers. In the end the robot has to carry Gandhi away.

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

是 = 旦 + 龰 : Mnemonic symbol: a skull, from "to be or not to be".

Sherlock Holmes (sh) starts his day in the space station's bathroom (Ø4) with a mug of coffee (旦). Holding a skull (mnemonic symbol for 是) in his hands, he asks himself "to be, or not to be" (是). He wonders if he can make the skull come back to life using lots of coffee, and injects coffee from his mug into the skull using a syringe (龰).

是 = 日 + 下 + 人 : Mnemonic symbol: a skull, from "to be or not to be".

Sherlock Holmes (sh) watches the Neanderthal Man (人) trying to climb to the sun (日) on a ladder (下) in the space station's bathroom (Ø4). Sherlock is afraid that he'll open the window, so he puts on a big skull (是) and scares him off.