( ( Our ( digestive system ) ) ( ( requires ( that ( ( our food ) ( is ( ( ( chewed ( by teeth ) ) , ) ( go ( through ( the ( esophagus ( , ( stomach ( , ( intestine ( and ( many ( associate organs ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP$ Our) (JJ digestive) (NN system)) (VP (VBZ requires) (SBAR (IN that) (S (NP (PRP$ our) (NN food)) (VP (VBZ is) (VP (VBG chewed) (PP (IN by) (NP (NNS teeth))) (, ,) (S (VP (VB go) (PP (IN through) (NP (DT the) (NNS esophagus) (, ,) (NN stomach) (, ,) (NN intestine) (CC and) (JJ many) (NN associate) (NNS organs)))))))))) (. .)))
Our digestive system requires that our food is chewed by teeth, go through the esophagus, stomach, intestine and many associate organs.
(ROOT (S (NP (NP (NNS Esophagus)) (, ,) (NP (NN stomach)) (, ,)) (ADVP (RB intestines)) (VP (VBP are) (NP (NP (DT the) (NNS structures)) (SBAR (WHNP (WDT that)) (S (VP (VBP make) (PRT (RP up)) (NP (NP (DT the) (JJ digestive) (NN system)) (PP (IN in) (NP (DT the) (JJ human) (NN body))))))))) (. .)))
Esophagus, stomach, intestines are the structures that make up the digestive system in the human body.