Assertion: sand dollar's test | /r/HasProperty | skeleton
Facets:
Source sentences:
text: The term "sand dollar" derives from the appearance of the tests (skeletons) of dead individuals after being washed ashore.
text: When they die, the hairs and any attaching organic materials rot away leaving the “test”, which is the skeleton.
text: Although they break easy and seem like chalk or compacted sand, they are actually the tests -- skeletons -- of a sea creature called a sand dollar.