三键

三 = 一 + 二 : Mnemonic symbol: Cartesian coordinate system with three (三) axes. Socrates (s-) is performing in front of the anthill (-an1). He created an electrical flute by attaching a large capacitor (二) to the flute (一), so that he can get the attention of all the people. Moreover, he's balancing on a Cartesian coordinate system (三). Unfortunately, only three (三) people stop to watch the performance.

键 = 建 + 钅 : Blob the Builder (建) built a fort out of keyboard keys (键) to defend against Joan of Arc (ji) who attacks him and his fort with a golden harpoon (钅) in the anthill's bathroom (an4).