红灯区

红 = 工 + 纟 : Mnemonic symbol: a little red book.

Helga Horse (hu) is reading the little red book (红) in the engine's kitchen ((e)ng2), when she discovers that it is being eaten by a silk worm (纟). She overreacts a little and wants to beat the silk worm with a steel beam (工).

灯 = 丁 + 火 : Don Quixote (d) was going for a walk in front of the engine ((e)ng1) with his lantern (灯) when it suddenly catched fire (火). He used a lantern which utilizes hydrogen, and when he accidentally ripped his lantern open at a nail (丁) on the floor, the hydrogen caught fire.

區 = 匚 + 品 : Cupid receives a metal box in front of the space station. He opens it and finds a road sign with a pyramid on it. Clever as he is, he derives that it must have been sent to him from the region of Egypt.

区 = 乂 + 匚 : Mnemonic symbol: An alien from Area 51.

区 = 乂 + 匚 : Cupid is chilling in front of the space station, when an alien from Area 51 flies by and gives him a metal box. Unfortunately, even using pliers, Cupid is too weak to open it.