( ( VERTEBRAL COLUMN ) ( ( -LRB- ( backbone -RRB- ) ) ( ( The ( vertebral column ) ) ( ( ( ( surrounds and ) protects ) ( the ( dorsal ( nerve cord ) ) ) ) . ) ) ) )
(ROOT (S (NP (NNP VERTEBRAL) (NNP COLUMN)) (PRN (-LRB- -LRB-) (NP (NN backbone)) (-RRB- -RRB-)) (NP (DT The) (JJ vertebral) (NN column)) (VP (VBZ surrounds) (CC and) (VBZ protects) (NP (DT the) (JJ dorsal) (NN nerve) (NN cord))) (. .)))
VERTEBRAL COLUMN (backbone) The vertebral column surrounds and protects the dorsal nerve cord.
(ROOT (S (NP (NNP Backbone)) (VP (VBZ is) (NP (NP (DT another) (NN name)) (PP (IN for) (NP (DT the) (JJ vertebral) (NN column))))) (. .)))
Backbone is another name for the vertebral column.