( ( Saliva ( produced ( by ( these glands ) ) ) ) ( ( contains ( ( an enzyme ) ( that ( begins ( to ( ( ( digest ( the starch ) ) ( from food ) ) ( into ( smaller molecules ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (NNP Saliva)) (VP (VBN produced) (PP (IN by) (NP (DT these) (NNS glands))))) (VP (VBZ contains) (NP (NP (DT an) (NN enzyme)) (SBAR (WHNP (WDT that)) (S (VP (VBZ begins) (S (VP (TO to) (VP (VB digest) (NP (DT the) (NN starch)) (PP (IN from) (NP (NN food))) (PP (IN into) (NP (JJR smaller) (NNS molecules))))))))))) (. .)))
Saliva produced by these glands contains an enzyme that begins to digest the starch from food into smaller molecules.
(ROOT (S (NP (NP (NNS Enzymes)) (PP (IN in) (NP (NN saliva)))) (VP (VBP help) (VP (VP (VB break) (PRT (RP down))) (CC and) (VP (VB digest) (NP (NNS starches) (CC and) (NNS fats))))) (. .)))