Sentence:  The Skull is divided into two parts, the <WSD>Cranium</WSD> and the Face. The <WSD>Cranium</WSD> is composed of "eight" bones; ... 
Meaning of the word marked with <WSD> tags:  The braincase or neurocranium; that part of the skull consisting of the bones enclosing the brain, but not including the bones of the face or jaw.