( TLW ( ( analyze ( ( ( the ( ( structure and ) functions ) ) ( of ( ( ( the ( human ( digestive system ) ) ) and ) ( excretory systems ) ) ) ) ( ( tracing ( ( ( the flow ) ( of ( ( food and ) elimination ) ) ) ( of wastes ) ) ) ( through ( the body ) ) ) ) ) . ) )
(ROOT (S (NP (NNP TLW)) (VP (VBP analyze) (S (NP (NP (DT the) (NN structure) (CC and) (NNS functions)) (PP (IN of) (NP (NP (DT the) (JJ human) (NN digestive) (NN system)) (CC and) (NP (JJ excretory) (NNS systems))))) (VP (VBG tracing) (NP (NP (DT the) (NN flow)) (PP (IN of) (NP (NN food) (CC and) (NN elimination))) (PP (IN of) (NP (NNS wastes)))) (PP (IN through) (NP (DT the) (NN body)))))) (. .)))
TLW analyze the structure and functions of the human digestive system and excretory systems tracing the flow of food and elimination of wastes through the body.
(ROOT (S (NP (NP (DT The) (JJ main) (NN function)) (PP (IN of) (NP (DT the) (JJ human) (NN digestive) (NN system)))) (VP (VBZ is) (S (VP (TO to) (VP (VB break) (PRT (RP down)) (NP (NP (NNS foods)) (PP (IN for) (NP (NN absorption)))) (PP (IN into) (NP (DT the) (NN blood))))))) (. .)))