Assertion: sea urchin's tube foot | /r/HasProperty | assisted by spine
Facets:
value: during locomotion
type: TEMPORAL
Source sentences:
text: During locomotion, the tube feet are assisted by the spines which can be used for pushing the body along or to lift the test off the substrate.
text: During locomotion, the tube feet are assisted by the spines which can be used for pushing the body along or to lift the test off the substrate.