Assertion: sea urchin | /r/CapableOf | feed on the ocean floor
Facets:
Source sentences:
text: They feed on seaweed on the ocean floor using their strong mouths located on their undersides.
text: Sea urchins live on the ocean floor, usually on hard surfaces, and use the tube feet or spines to move about.
text: They feed on seaweed on the ocean floor using their strong mouths located on their undersides.
text: They feed on seaweed on the ocean floor using their strong mouths located on their undersides.