( ( Systems studies ) ( ( include ( the ( skeletal ( , ( muscular ( and ( nervous systems ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Systems) (NNS studies)) (VP (VBP include) (NP (DT the) (JJ skeletal) (, ,) (JJ muscular) (CC and) (JJ nervous) (NNS systems))) (. .)))
Systems studies include the skeletal, muscular and nervous systems.
(ROOT (S (NP (NP (NNS Examples)) (PP (IN of) (NP (NP (NN organ) (NNS systems)) (PP (IN in) (NP (DT a) (NN human)))))) (VP (VBP include) (NP (NP (DT the) (NN skeletal)) (, ,) (ADJP (JJ nervous)) (, ,) (CC and) (NP (JJ reproductive) (NNS systems)))) (. .)))