Assertion: oyster's shell | /r/CapableOf | vary in shape
Facets:
value: from oval
type: OTHER
value: to pear-
type: OTHER
Source sentences:
text: Covered in the murk and mire that exists in the brackish habitats where they are found, the oyster lives as a bivalve (a 2 shelled mollusk) with a hard and thick shell that varies in shape from oval to pear-