( ( More energy ) ( ( means ( more ( voltage ( over ( the HOT ) ) ) ) ) . ) )
(ROOT (S (NP (JJR More) (NN energy)) (VP (VBZ means) (ADJP (RBR more) (JJ voltage) (PP (IN over) (NP (DT the) (NNP HOT))))) (. .)))
More energy means more voltage over the HOT.
(ROOT (S (NP (NNP Voltage)) (VP (VP (VBZ is) (RB not) (NP (NP (DT the) (JJ same)) (PP (IN as) (NP (NN energy))))) (, ,) (CC but) (VP (VBZ means) (NP (NP (DT the) (NN energy)) (PP (IN per) (NP (NN unit) (NN charge)))))) (. .)))