Assertion: seashell | /r/HasProperty | calcium carbonate
Facets:
value: fundamentally
type: DEGREE
value: typically
type: DEGREE
Source sentences:
text: A seashell is usually the exoskeleton of an invertebrate (an animal without a backbone), and is typically composed of calcium carbonate or chitin.
text: Seashells are comprised of calcium carbonate and a small quantity of protein.
text: Seashells, namely from bivalves and gastropods, are fundamentally composed of calcium carbonate.