Assertion: bone | /r/HasProperty | absent
Facets:
value: in living amphibians
type: OTHER
value: entirely
type: DEGREE
Source sentences:
text: A bone graft may fill an area where bone is absent or help provide structural stability.
text: The bone is entirely absent in living amphibians, as well as some reptilian species.
text: The bone is also absent in living amphibians.