( ( ( ( ( ( ( ( ( ( Nervous system ) , ) ( digestive system ) ) , ) ( circulatory system ) ) , ) ( excretory system ) ) and ) ( reproductive system ) ) ( ( are ( described ( by ( ( Neusser et ) al. ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Nervous) (NN system)) (, ,) (NP (JJ digestive) (NN system)) (, ,) (NP (JJ circulatory) (NN system)) (, ,) (NP (JJ excretory) (NN system)) (CC and) (NP (JJ reproductive) (NN system))) (VP (VBP are) (VP (VBN described) (PP (IN by) (NP (NNP Neusser) (CC et) (NNP al.))))) (. .)))
Nervous system, digestive system, circulatory system, excretory system and reproductive system are described by Neusser et al.
(ROOT (S (NP (NP (DT A) (NN relationship)) (PP (IN between) (NP (CD two) (JJ human) (NN body) (NNS systems)))) (VP (MD could) (VP (VB be) (NP (NP (DT the) (JJ digestive) (NN system)) (SBAR (S (VP (VBZ absorbs) (NP (NP (NNS nutrients)) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (VP (VBN transported) (PP (IN by) (NP (DT the) (JJ circulatory) (NN system)))))))))))))) (. .)))