( ( ( ( ( ( ( Carbohydrates and ) proteins ) ( contain ( ( four calories ) ( per gram ) ) ) ) ( , ( ( fat ( contains ( ( nine calories ) ( per gram ) ) ) ) , ) ) ) and ) ( alcohol ( contains ( ( seven calories ) ( per gram ) ) ) ) ) . )
(ROOT (S (S (NP (NNS Carbohydrates) (CC and) (NNS proteins)) (VP (VBP contain) (NP (NP (CD four) (NNS calories)) (PP (IN per) (NP (NN gram)))))) (PRN (, ,) (S (NP (NN fat)) (VP (VBZ contains) (NP (NP (CD nine) (NNS calories)) (PP (IN per) (NP (NN gram)))))) (, ,)) (CC and) (S (NP (NN alcohol)) (VP (VBZ contains) (NP (NP (CD seven) (NNS calories)) (PP (IN per) (NP (NN gram)))))) (. .)))
Carbohydrates and proteins contain four calories per gram, fat contains nine calories per gram, and alcohol contains seven calories per gram.
(ROOT (S (NP (NP (CD One) (NN gram)) (PP (IN of) (NP (NNS proteins)))) (VP (VBZ provides) (NP (NP (CD four) (NNS calories)) (PP (IN of) (NP (NN energy))))) (. .)))