Assertion: gastropod's shell | /r/HasProperty | hard
Facets:
value: very
type: DEGREE
Source sentences:
text: However, the shell is still very hard to find naturally cast up on beaches, so people who find a junonia while shelling on Sanibel Island, Florida, often get their picture in the local newspapers.
text: A shell is a hard outer layer, which has evolved in a very wide variety of different animals, including molluscs, sea urchins, crustaceans, turtles and tortoises, armadillos, etc.