国际单位

国 = 囗 + 玉 : Mnemonic symbol: a nation's flag. Let's say the Chinese flag.

In the observatory's kitchen (o2) Gitta Giraffe (gu) is practising her ballet performance. She got a whole crate (囗) full of jade bracelets (玉) and flags (国) and fixed one flag to each jade bracelet. This makes a perfect combination for throwing the ring with the flag waving behind it and catching the ring again after a few pirouettes.

际 = 示 + 阝 : Joan of Arc (ji) and the pope (阝) have an international (际) meeting in the space station's bathroom (Ø4). They decide on the border through the bathroom and mark their territories using standards (示).

单 = 丷 + 田 + 十 : In front of the anthill there are many, really a field of crosses because Don Quixote killed so many people on his crusades. Today is his judgement day: a mean crocodile reads the list of his victims to him, and Don Quixote is really 不好意思.

位 = 亻 + 立 : An armchair.

位 = 亻 + 立 : Rosa Luxemburg visits Willy Walrus in the Eiffel Tower's bathroom. He sits in his place--an armchair--like a king, and Rosa presents him a vase.