Assertion: snail's habitat | /r/CapableOf | build solid shell
Facets:
value: really
type: DEGREE
Source sentences:
text: In habitats where there is not enough calcium carbonate to build a really solid shell, such as on some acidic soils on land, there are still various species of slugs, and also some snails with a thin translucent shell, mostly or entirely composed of the protein conchiolin.