Mnemonic symbol: a balloon. The Queen of Hearts is disappointed by her balloons. She expected them to float upwards, but in the space station's bathroom, They float randomly in all directions.
鼓
=
壴
+
支
:
Gitta Giraffe (gu) is beating her drums in the space station (Ø3). She is beating an archaic drum (壴) and a modern snare drum (鼓) using a twig (支).