考古學家

考 = ⺹ + 丂 : Karl Marx (k) has to take an exam (考) in the artoa's living room (ao3). It is very difficult for him because he has to wear a breathing mask (丂) due to the open fire, and he also has to wear a huge crown (⺹) which makes it difficult for him to see the exam papers.

古 = 十 + 口 : Mnemonic symbol: at least on German maps, this character actually resembles a cloister.

Oh no! Gitta Giraffe (gu) found that the golden cross (十) broke off of the cloister (古) in the space station's living room (Ø3)! She skewers a mandarin (口) on top of the cloister so that she can skewer the broken off cross back on to fix it.

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.

家 = 宀 + 豕 : Mnemonic symbol: a framed "home sweet home" picture.

The swine (豕) graduated and wearing a graduation cap (宀), it came home to the ashram. In front of it (a1), Joan of Arc (ji) welcomes the swine and hugs it. To welcome her dear swine, she put a gigantic home sweet home (家) picture in front of the ashram.