( ( The ( small intestine ) ) ( ( is ( ( a ( ( very important ) part ) ) ( of ( ( the ( digestive system ) ) ( as ( being ( ( the site ) ( where ( ( most ( of ( the ( nutrient absorption ) ) ) ) ( takes place ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ small) (NN intestine)) (VP (VBZ is) (NP (NP (DT a) (ADJP (RB very) (JJ important)) (NN part)) (PP (IN of) (NP (NP (DT the) (JJ digestive) (NN system)) (PP (IN as) (S (VP (VBG being) (NP (NP (DT the) (NN site)) (SBAR (WHADVP (WRB where)) (S (NP (NP (JJS most)) (PP (IN of) (NP (DT the) (JJ nutrient) (NN absorption)))) (VP (VBZ takes) (NP (NN place))))))))))))) (. .)))
The small intestine is a very important part of the digestive system as being the site where most of the nutrient absorption takes place.
(ROOT (S (PP (IN In) (NP (DT the) (NN body))) (, ,) (NP (NN chemical) (NN digestion)) (ADVP (RB mainly)) (VP (VBZ takes) (NP (NP (NN place)) (PP (IN in) (NP (DT the) (JJ small) (NN intestine))))) (. .)))
In the body, chemical digestion mainly takes place in the small intestine.