( ( Most ( of ( ( the ( chemical digestion ) ) ( of foods ) ) ) ) ( ( takes ( place ( in ( the ( small ( intestine 2 ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (NP (DT the) (JJ chemical) (NN digestion)) (PP (IN of) (NP (NNS foods)))))) (VP (VBZ takes) (NP (NP (NN place)) (PP (IN in) (NP (DT the) (JJ small) (QP (CD intestine) (CD 2)))))) (. .)))
Most of the chemical digestion of foods takes place in the small intestine 2.
(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.