to follow / from / because of / due to / by / via / through / (before a noun and a verb) it is for ... to ...
由
=
丨
+
曰
:
Mnemonic symbol: 自由古巴， a cuba libre. The character 由 itself even looks like a cuba libre.
Maud Younger (y) is taking part in a charity auction in the outhouse's kitchen (ou2). She is auctioning the dinosaur bone (丨) next to her and is speaking into a microphone (曰). In the other hand she is holding a cuba libre (由), and she is already quite drunk.
鼠
=
臼
+
丨
+
丶
:
Sheldon Shrimp (shu) found that there are rats (鼠) in the space station (Ø3), and he wants to get rid of them. In a mortar (臼) pulverizes some petal leaves (丶丶丶丶) and a computer mouse (鼠) grinding with a dinosaur bone three times (丨丨丨). He hopes that the rats like the mixture and the heavy metals used to make the computer mouse will kill the rats.