约束条件

约 = 勺 + 纟 : Marilyn Monroe is on a date with a silk worm in front of the elevator. Marilyn wants to show the silk worm around, and so she carries him around on a little silver spoon.

束 = 口 + 木 : Mnemonic symbol: a bundle of firewood.

In the space station's bathroom (Ø4), Sheldon Shrimp (shu) built a stage out of bundles of firewood (束) to put his Christmas tree (木) on. Under the tree he put his favourite food: mandarins (口).

条 = 夂 + 朩 : Mnemonic symbol: a bungee cord.

条 = 夂 + 朩 : Mother Teresa helps to clear a sewage pipe just inside the aorta's kitchen. With a bungee cord, she fishes a heap of high heels out of the sewage pipe.

件 = 亻 + 牛 : Joan of Arc and Rosa Luxemburg want to use the anthill's bathroom, but there is a bull blocking the way. He posed them a riddle, and as long as they can't deliver the item or component he asked for to fulfill this quest, he won't let them pass.