( Protein ( ( provides ( ( ( about 4 ) calories ) ( per gram ) ) ) . ) )
(ROOT (S (NP (NNP Protein)) (VP (VBZ provides) (NP (NP (QP (RB about) (CD 4)) (NNS calories)) (PP (IN per) (NP (NN gram))))) (. .)))
Protein provides about 4 calories per gram.
(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))))) (. .)))