( ( ( ( NERVOUS SYSTEM ) , ) PARASYMPATHETIC ) . )
(ROOT (NP (NP (NNP NERVOUS) (NNP SYSTEM)) (, ,) (NP (NNP PARASYMPATHETIC)) (. .)))
NERVOUS SYSTEM, PARASYMPATHETIC .
(ROOT (S (NP (DT The) (JJ parasympathetic) (NN system)) (VP (MD can) (ADVP (RB also)) (VP (VB be) (VP (VBN referred) (S (VP (TO to))) (PP (IN as) (NP (DT the) (JJ craniosacral) (NN system)))))) (. .)))