岛
=
乌
+
山
:
Don Quixote (d) is trapped on a remote island (岛) inside of the aortas (ao3). The only animal on the island is a black crow (乌), and Don Quixote is chasing it with a fork (山) round and round the island, trying to catch it.
mountain / hill / anything that resembles a mountain / CL:座[zuo4] / bundled straw in which silkworms spin cocoons / gable
山
=
丨
+
凵
:
Mnemonic symbol: 山 looks like the tip of a fork. Sherlock Holmes (sh) is climbing a mountain (山) in front of the anthill (an1). He uses a dinosaur bone (〡) as walking stick, and to have better grip he attached a fork (山) to its tip. Unfortunately he accidentally sticks the fork into a receptacle (凵) on the ground of the mountain and gets shocked.