( ( ( 45 ( LE 44-9 ) ) ( Filtration ( Reabsorption Secretion ) ) ) ( Excretion ( Excretory ( tubule ( Capillary ( Filtrate Urine ) ) ) ) ) )
(ROOT (NP (NP (CD 45) (NNP LE) (CD 44-9)) (NP (NNP Filtration) (NNP Reabsorption) (NNP Secretion)) (NP (NNP Excretion) (NNP Excretory) (NN tubule) (NNP Capillary) (NNP Filtrate) (NNP Urine))))
45 LE 44-9 Filtration Reabsorption Secretion Excretion Excretory tubule Capillary Filtrate Urine
(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)))))) (. .)))