( ( ( The Intestines ) ( The ( small intestine ) ) ) ( ( is ( ( the ( primary site ) ) ( of ( chemical ( digestion ( and ( nutrient absorption ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NNPS Intestines)) (NP (DT The) (JJ small) (NN intestine))) (VP (VBZ is) (NP (NP (DT the) (JJ primary) (NN site)) (PP (IN of) (NP (JJ chemical) (NN digestion) (CC and) (NN nutrient) (NN absorption))))) (. .)))
The Intestines The small intestine is the primary site of chemical digestion and nutrient absorption.
(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.