( ( ( Each gram ) ( of carbohydrate ) ) ( ( contains ( four Calories ) ) . ) )
(ROOT (S (NP (NP (DT Each) (NN gram)) (PP (IN of) (NP (NN carbohydrate)))) (VP (VBZ contains) (NP (CD four) (NNS Calories))) (. .)))
Each gram of carbohydrate contains four Calories.
(ROOT (S (NP (NP (CD One) (NN gram)) (PP (IN of) (NP (NNS carbohydrates)))) (VP (VBZ provides) (NP (NP (CD four) (NNS calories)) (PP (IN of) (NP (NN energy))))) (. .)))