( ( The ( Costal Cartilages ) ) ( The ( Skull a. ) ) )
(ROOT (NP (NP (DT The) (NNP Costal) (NNP Cartilages)) (NP (DT The) (JJ Skull) (NN a.))))
The Costal Cartilages The Skull a.
(ROOT (S (NP (NNS Hagfishes)) (VP (VBP have) (NP (NP (DT a) (NN skull)) (VP (VBN made) (PP (IN of) (NP (NN cartilage)))))) (. .)))