( ( ( The ( Small Intestine ) ) ( The duodenum ) ) ( ( is ( ( the ( main site ) ) ( for ( digestion ( in ( the ( small intestine ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (JJ Small) (NN Intestine)) (NP (DT The) (NN duodenum))) (VP (VBZ is) (NP (NP (DT the) (JJ main) (NN site)) (PP (IN for) (NP (NP (NN digestion)) (PP (IN in) (NP (DT the) (JJ small) (NN intestine))))))) (. .)))
The Small Intestine The duodenum is the main site for digestion in the small intestine.
(ROOT (S (NP (NP (JJS Most)) (PP (IN of) (NP (DT the) (NN digestion) (NNS reactions)))) (VP (VBP occur) (PP (IN in) (NP (DT the) (JJ small) (NN intestine)))) (. .)))