( ( ( ( Most ( chemical digestion ) ) and ) ( absorption ( of food ) ) ) ( ( occurs ( in ( the ( small intestine ) ) ) ) . ) )
(ROOT (S (NP (NP (JJS Most) (NN chemical) (NN digestion)) (CC and) (NP (NP (NN absorption)) (PP (IN of) (NP (NN food))))) (VP (VBZ occurs) (PP (IN in) (NP (DT the) (JJ small) (NN intestine)))) (. .)))
Most chemical digestion and absorption of food occurs in the small intestine.
(ROOT (S (NP (NP (DT The) (NN majority)) (PP (IN of) (NP (NN chemical) (NN digestion)))) (VP (VBZ occurs) (PP (IN in) (NP (DT the) (JJ small) (NN intestine)))) (. .)))