( Kidney ( ( ( performs ( excretion process ) ) ( in ( ( three steps ) ( such ( as ( ( ( ( Filtration , ) ( Re absorption ) ) and ) secretion ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Kidney)) (VP (VBZ performs) (NP (NN excretion) (NN process)) (PP (IN in) (NP (NP (CD three) (NNS steps)) (PP (JJ such) (IN as) (NP (NP (NNP Filtration)) (, ,) (NP (NNP Re) (NNP absorption)) (CC and) (NP (NN secretion))))))) (. .)))
Kidney performs excretion process in three steps such as Filtration, Re absorption and secretion.
(ROOT (S (NP (NP (DT The) (JJ main) (NNS functions)) (PP (IN of) (NP (NN epithelia)))) (VP (VBP are) (NP (NP (NN protection)) (PP (IN from) (NP (NP (DT the) (NN environment) (, ,) (NN coverage) (, ,) (NN secretion) (CC and) (NN excretion)) (, ,) (NP (NN absorption)) (, ,) (CC and) (NP (NN filtration)))))) (. .)))