Head noun: base
Postmodifier: of the skull

Same concepts
http://dbpedia.org/resource/Base_of_skull

Broader concepts

labelprovenanceconfidence
pointisap:922270520.384987
injuryisap:3099207110.375775
holeisap:1654229410.260179
headacheisap:4612436940.216640
neckisap:1665689660.179992

Narrower concepts

labelprovenanceconfidence
acoustic neuromaisap:731116430.809758
skullisap:2038878180.316798