Assertion: starfish's predator | /r/HasProperty | otter
Facets:
Source sentences:
text: Made up of plates of calcium carbonate with tiny spines on their surface, a sea star's spines are used for protection from predators, which include birds, fish and sea otters.
text: Typical predators of sea stars include otters, sharks, seagulls, rays, and some species of fish.
text: ’s spines are used for protection from predators, which include birds, fish and sea otters.