Assertion: sea urchin's test | /r/HasProperty | shell
Facets:
Source sentences:
text: How to identify The familiar white 'test' (shell) of the dead animal is often washed up on the shore.
text: These jaws are arranged in a circular plate known as Aristotle’s lantern, located on the underside of the test (shell).
text: Often, the empty test (shell) is found washed ashore and is white and brittle.
text: Their empty tests (shells) are often found washed up on the beach.