( ( The ( human ( excretory system ) ) ) ( ( functions ( to ( ( remove waste ) ( from ( the ( human body ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ human) (NN excretory) (NN system)) (VP (VBZ functions) (S (VP (TO to) (VP (VB remove) (NP (NN waste)) (PP (IN from) (NP (DT the) (JJ human) (NN body))))))) (. .)))
The human excretory system functions to remove waste from the human body.
(ROOT (S (NP (DT The) (JJ urinary) (NN system) (NN system)) (VP (VP (VBZ controls) (NP (NP (DT the) (NN amount)) (PP (IN of) (NP (NN water)))) (PP (IN in) (NP (DT the) (NN body)))) (CC and) (VP (VBZ removes) (NP (NNS wastes)))) (. .)))