固
=
古
+
囗
:
Gitta Giraffe is building a hard and solid stronghold inside the bathroom's space station. The stronghold consists of a cloister inside a wooden box.
土
=
十
+
一
:
Tommy Turtle (tu) wants to fix a cross (十) on a flute (一) in the space station's living room (Ø3). He uses dust and clay (土) to hold them together.