( ( ( One gram ) ( of proteins ) ) ( ( provides ( ( 4 Calories ) ( of energy ) ) ) . ) )
(ROOT (S (NP (NP (CD One) (NN gram)) (PP (IN of) (NP (NNS proteins)))) (VP (VBZ provides) (NP (NP (CD 4) (NNS Calories)) (PP (IN of) (NP (NN energy))))) (. .)))
One gram of proteins provides 4 Calories of energy.
(ROOT (S (NP (NP (CD One) (NN gram)) (PP (IN of) (NP (NN sugar) (CC or) (NN starch)))) (VP (VBZ provides) (NP (NP (CD 4) (NNS calories)) (PP (IN of) (NP (NN energy))))) (. .)))