十
=
一
+
丨
:
Mnemonic symbol: a holy cross. Sherlock Holmes (sh-) is investigating a very strange thing he found in the kitchen of the space station (-2): A big pyramid made of ten (十) crosses (十), which are in turn made out of flutes (一) and dinosaur bones (丨).
诫
=
戒
+
讠
:
Joan of Arc (ji) set up an advertising column (讠) in the elevator's bathroom (e4) with the ten commandments (诫) about her holy ring (戒) and to warn (诫) everyone to touch it (which is prohibited (诫)).