史蒂文

史 = 口 + 乂 : For a mission in the space station (Ø3) Sherlock Holmes (sh) has to find out the history (史) of a mandarin (口), so with a pair of pliers (乂) he took to the space station he squeezes the mandarin like an orange.

蒂 = 艹 + 帝 : Dorothy Gale (di) is lying on a sheet of artificial lawn (艹) in the space station's bathroom (Ø4), and Caesar (帝) is looking for her cigarette butt (蒂).

文 = 乂 + 亠 : Mnemonic symbol: a thick book.

Willy Walrus (w) wants to cook in the encampment's kitchen ((e)n2). The recipe book (文) is extremely greasy and Willy doesn't want it to touch anything, nor touch it. That's why he puts it into a beret (亠) so that it doesn't touch the floor, and uses pliers (乂) to turn the pages.