( ( ( ( parasympathetic systems ) & ) nbsp ) ; )
(ROOT (NP (NP (NP (JJ parasympathetic) (NNS systems)) (CC &) (NP (NN nbsp))) (: ;)))
parasympathetic systems &  nbsp;
(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)))))) (. .)))