未來學

未 = 一 + 木 : Mnemonic symbol: the artist Ai Weiwei. Shortly after finishing a new installation in the Eiffel Tower's bathroom (ei4), Ai Weiwei (未) is imprisoned by Willy Walrus (w), because—out of all places—Ai Weiwei put his new installation right into Willy Walrus's toilet. Ai Weiwei's installation is a Christmas tree (木) with a tiny, slightly tilted flute (一) on top. Ai Weiwei would really, really like to correct the tilted flute, but so far, Willy Walrus has not yet (未) let him out.

來 = 从 + 木 : Mnemonic symbol: mailwoman. Sir Lancelot (l) is visiting the mailwoman (來) in the airplane's kitchen (ai2). As a gift, he brought a Christmas tree (木) decorated with rubber chicken (从).

来 = 丷 + 未 : Mnemonic symbol: mailwoman. Lancelot (l) is super happy that his inflatable crocodile (丷) and live size Ai Weiwei (未) puppet finally arrived (来). The mailwoman (来) delivered them straight to the kitchen of the airplane (ai2).

学 = 小 + 冖 + 子 : Xu Xian wants to study scienceology and learn more about daisies. Just inside the elevator's kitchen, he put some daisies into a prize cup and covered them with a cooking top. He wants to study the growth rate of the daisies depending on the pH of the water in the prize cup.