Assertion: foramen magnum | /r/HasProperty | big hole
Facets:
value: at the skull base
type: LOCATION
value: at the base of the skull
type: LOCATION
Source sentences:
text: The foramen magnum is the big hole at the base of the skull through which the brain is connected to the spinal cord.
text: It enters into the skull from the foramen magnum, which is a big opening at the skull base.