坚
=
収
+
土
:
Joan of Arc (ji) built a strong (坚) and sturdy (坚) burrow out of dirt (土) in front of the anthill (an1). She even equipped it with a strong (坚) radio (収) to keep contact with her troops.
贞
=
⺊
+
贝
:
Mnemonic symbol: a girdle of chastity. James II of England (zh) wants to get rid of his girdle of chastity (贞). In front of the encampment ((e)n1) he asks the crab (贝) to destroy the girdle, but the crab waves with a pennant (⺊) instead to alarm the royal guard.