Assertion: hermit crab's shell | /r/HasProperty | discarded
Facets:
Source sentences:
text: During this process the evicted defender is left without a shell, but once the attacker has made its decision the defender is free to move into the shell that is eventually discarded, such that the encounter often ends with an ‘exchange’ of shells.
text: Hermit crabs are crabs that lack a hard shell; they use a discarded shell for protection.