Assertion: purple sea urchin | /r/HasAspect | five teeth
Facets:
Source sentences:
text: The Purple Sea Urchin has protective large spines, pincers (called pedicellariae), tube feet and five teeth, arranged in a circle at the bottom of its body, that it uses to scrape algae from rock surfaces?
text: The purple sea urchin also has five teeth which form to create Aristotle’s Lantern.