( Food ( ( ( ( ( is not ) ( chewed ( in ( the mouth ) ) ) ) but ) ( ground ( in ( ( ( the gizzard ) , ) ( ( a ( digestive organ ) ) ( near ( the stomach ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Food)) (VP (VP (VBZ is) (RB not) (VP (VBN chewed) (PP (IN in) (NP (DT the) (NN mouth))))) (CC but) (VP (VBD ground) (PP (IN in) (NP (NP (DT the) (NN gizzard)) (, ,) (NP (NP (DT a) (JJ digestive) (NN organ)) (PP (IN near) (NP (DT the) (NN stomach)))))))) (. .)))
Food is not chewed in the mouth but ground in the gizzard, a digestive organ near the stomach.
(ROOT (S (NP (DT The) (NN mouth)) (VP (VBZ is) (NP (DT the) (JJ first) (NN digestive) (NN organ)) (SBAR (IN that) (S (NP (NN food)) (VP (VBZ enters))))) (. .)))