( ( ( Chewing ( and ( salivary enzymes ) ) ) ( in ( the mouth ) ) ) ( ( are ( ( the beginning ) ( of ( ( the ( digestive process ) ) ( -LRB- ( ( ( breaking down ) ( the food ) ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NN Chewing) (CC and) (NN salivary) (NNS enzymes)) (PP (IN in) (NP (DT the) (NN mouth)))) (VP (VBP are) (NP (NP (DT the) (NN beginning)) (PP (IN of) (NP (NP (DT the) (JJ digestive) (NN process)) (PRN (-LRB- -LRB-) (VP (VBG breaking) (PRT (RP down)) (NP (DT the) (NN food))) (-RRB- -RRB-)))))) (. .)))
Chewing and salivary enzymes in the mouth are the beginning of the digestive process (breaking down the food).
(ROOT (S (NP (NNP Digestion)) (VP (VBZ begins) (PP (IN in) (NP (DT the) (NN mouth)))) (. .)))