Assertion: lamprey's fish | /r/HasAspect | skeleton
Facets:
Source sentences:
text: Cartilaginous fish are fish that have a skeleton made of cartilage, rather than bone.
text: In simple terms, a bony fish (Osteichthyes) is one whose skeleton is made of bone, while a cartilaginous fish (Chondrichthyes) has a skeleton made of soft, flexible cartilage.