( ( ( ( ( ( ( A ( laboratory analysis ) ) ( of ( the urine ) ) ) ( shows ( ( variable amounts ) ( of protein ) ) ) ) , ) and ) ( ( ( ( ( the concentration ) ( of ( ( urea and ) creatinine ) ) ) ( -- ( ( two ( waste products ) ) -- ) ) ) ( in ( the blood ) ) ) ( is ( often high ) ) ) ) . )
(ROOT (S (S (NP (NP (DT A) (NN laboratory) (NN analysis)) (PP (IN of) (NP (DT the) (NN urine)))) (VP (VBZ shows) (NP (NP (JJ variable) (NNS amounts)) (PP (IN of) (NP (NN protein)))))) (, ,) (CC and) (S (NP (NP (NP (DT the) (NN concentration)) (PP (IN of) (NP (NN urea) (CC and) (NN creatinine)))) (PRN (: --) (NP (CD two) (NNP waste) (NNS products)) (: --)) (PP (IN in) (NP (DT the) (NN blood)))) (VP (VBZ is) (ADJP (RB often) (JJ high)))) (. .)))
A laboratory analysis of the urine shows variable amounts of protein, and the concentration of urea and creatinine--two waste products--in the blood is often high.
(ROOT (S (NP (NNS Animals)) (VP (MD can) (VP (VP (VB transport) (NP (NP (DT the) (NN waste) (NN material)) (VP (VBN known) (PP (IN as) (NP (NP (NN urea)) (PP (IN in) (NP (DT the) (JJ circulatory) (NN system)))))))) (CC and) (VP (VB store) (NP (PRP it)) (ADVP (RB safely)) (PP (IN at) (NP (JJ high) (NNS concentrations)))))) (. .)))