( This ( ( can ( be ( accomplished ( with ( ( high concentrations ) ( of ( salt ( , ( urea ( , ( ( acid or ) base ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (MD can) (VP (VB be) (VP (VBN accomplished) (PP (IN with) (NP (NP (JJ high) (NNS concentrations)) (PP (IN of) (NP (NN salt) (, ,) (NN urea) (, ,) (NN acid) (CC or) (NN base)))))))) (. .)))
This can be accomplished with high concentrations of salt, urea, acid or base.
(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)))))) (. .)))