Assertion: scallop's valve | /r/HasProperty | fan-shaped
Facets:
value: usually
type: DEGREE
Source sentences:
text: The two valves of the shell are usually fan-shaped, except for the straight hinge line with winglike projections at either side of the hinge; the valves range in size from about 2.5 cm (1 inch) to more than 15 cm (6 inches).