Assertion: sea urchin's tube foot | /r/CapableOf | extend through hole
Facets:
value: from inside the test
type: LOCATION
value: in the plates
type: LOCATION
Source sentences:
text: In urchins, the skeletal ossicles are flattened plates, fused into a rigid test (skeleton).Â The spines sit on knobs on the test, attached by skin and muscles; the water-filled tube feet extend from inside the test out through holes in the plates.