Assertion: echinoderm's mouth | /r/LocatedNear | tentacle
Facets:
Source sentences:
text: The mouth is surrounded by tentacles, which can be pulled back inside the animal.
text: Its mouth is surrounded by tentacles that are really tubed feet.
text: They have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes.