( Digestion ( ( begins ( in ( ( the mouth ) ( with ( thorough chewing ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Digestion)) (VP (VBZ begins) (PP (IN in) (NP (NP (DT the) (NN mouth)) (PP (IN with) (NP (JJ thorough) (VBG chewing)))))) (. .)))
Digestion begins in the mouth with thorough chewing.
(ROOT (S (NP (NNP Digestion)) (VP (VBZ begins) (PP (IN in) (NP (DT the) (NN mouth)))) (. .)))