( ( The pancreas ) ( ( is ( ( a ( digestive organ ) ) ( attached ( to ( the ( small intestine ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (NN pancreas)) (VP (VBZ is) (NP (NP (DT a) (JJ digestive) (NN organ)) (VP (VBN attached) (PP (TO to) (NP (DT the) (JJ small) (NN intestine)))))) (. .)))
The pancreas is a digestive organ attached to the small intestine.
(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.