Assertion: skull's bone | /r/HasProperty | lost
Facets:
value: due to severe fractures
type: CAUSE
value: due to etc
type: CAUSE
value: due to disease
type: CAUSE
Source sentences:
text: Artificial bone refers to bone-like material created in a laboratory that can be used in bone grafts, to replace human bone that was lost due to severe fractures, disease, etc.