Assertion: cornea | /r/HasProperty | an extension of the sclera
Facets:
value: in lampreys
type: LOCATION
value: solely
type: DEGREE
Source sentences:
text: In lampreys, the cornea is solely an extension of the sclera, and is separate from the skin above it, but in more advanced vertebrates it is always fused with the skin to form a single structure, albeit one composed of multiple layers.