Assertion: soft shell clam's shell | /r/MadeOf | two valves
Facets:
Source sentences:
text: aquatic mollusk of the class Pelecypoda ("hatchet-foot") or Bivalvia, with a laterally compressed body and a shell consisting of two valves, or movable pieces, hinged by an elastic ligament.
text: Both groups have a shell consisting of two valves, but the organization of the shell is quite different in the two groups.