( ( The ( small intestine ) ) ( ( is ( ( the ( major site ) ) ( of ( ( ( ( ( ( food breakdown ) , ) ( chemical digestion ) ) , ) and ) ( ( cellular absorption ) ( of food ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ small) (NN intestine)) (VP (VBZ is) (NP (NP (DT the) (JJ major) (NN site)) (PP (IN of) (NP (NP (NN food) (NN breakdown)) (, ,) (NP (NN chemical) (NN digestion)) (, ,) (CC and) (NP (NP (JJ cellular) (NN absorption)) (PP (IN of) (NP (NN food)))))))) (. .)))
The small intestine is the major site of food breakdown, chemical digestion, and cellular absorption of food.
(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)))) (. .)))