( ( Although ( ( carbohydrate digestion ) ( starts ( in ( the mouth ) ) ) ) ) ( , ( ( the ( small intestine ) ) ( ( is ( ( the ( major area ) ) ( of ( ( digestion and ) absorption ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Although) (S (NP (JJ carbohydrate) (NN digestion)) (VP (VBZ starts) (PP (IN in) (NP (DT the) (NN mouth)))))) (, ,) (NP (DT the) (JJ small) (NN intestine)) (VP (VBZ is) (NP (NP (DT the) (JJ major) (NN area)) (PP (IN of) (NP (NN digestion) (CC and) (NN absorption))))) (. .)))
Although carbohydrate digestion starts in the mouth, the small intestine is the major area of digestion and absorption.
(ROOT (S (NP (JJ Carbohydrate) (NN digestion)) (VP (VBZ begins) (PP (IN in) (NP (DT the) (NN mouth)))) (. .)))