( ( The ( ( parasympathetic nervous ) system ) ) ( ( is ( ( ( the rest ) and ) ( digest system ) ) ) . ) )
(ROOT (S (NP (DT The) (ADJP (JJ parasympathetic) (JJ nervous)) (NN system)) (VP (VBZ is) (NP (NP (DT the) (NN rest)) (CC and) (NP (JJ digest) (NN system)))) (. .)))
The parasympathetic nervous system is the rest and digest system.
(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)))))) (. .)))