( ( ( A brain ) ( inside ( the skull ) ) ) ( ( ( ( ran ( ( the ( front part ) ) ( of ( the body ) ) ) ) , ) ( while ( ( ( a brain ) ( at ( ( the back ) ( of ( the ( spinal cord ) ) ) ) ) ) ( took ( care ( of ( the hindquarters ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT A) (NN brain)) (PP (IN inside) (NP (DT the) (NN skull)))) (VP (VBD ran) (NP (NP (DT the) (JJ front) (NN part)) (PP (IN of) (NP (DT the) (NN body)))) (, ,) (SBAR (IN while) (S (NP (NP (DT a) (NN brain)) (PP (IN at) (NP (NP (DT the) (NN back)) (PP (IN of) (NP (DT the) (JJ spinal) (NN cord)))))) (VP (VBD took) (NP (NP (NN care)) (PP (IN of) (NP (DT the) (NNS hindquarters)))))))) (. .)))
A brain inside the skull ran the front part of the body, while a brain at the back of the spinal cord took care of the hindquarters.
(ROOT (S (NP (NP (DT The) (NN cranium)) (PRN (-LRB- -LRB-) (NP (NN skull)) (-RRB- -RRB-))) (VP (VBP protect) (S (-LRB- -LRB-) (NP (PRP s)) (-RRB- -RRB-) (NP (DT the) (NN brain)))) (. .)))
The cranium (skull) protect(s) the brain.