Assertion: mastoid process's portion | /r/HasAspect | base
Facets:
Source sentences:
text: Moving upward, this portion has a base fused with the squama and mastoid portion, and an apex that sits between the occipital and sphenoid bones.
text: Moving upward, this portion has a base fused with the squama and mastoid portion, and an apex that sits between the occipital and sphenoid bones.