( I ( ( suppose ( we ( could ( ( ( ( ( measure ( both ( ( ( the voltage ) and ) current ) ) ) , ) ( ( multiply them ) together ) ) and ) ( derive power ) ) ) ) ) . ) )
(ROOT (S (NP (PRP I)) (VP (VBP suppose) (SBAR (S (NP (PRP we)) (VP (MD could) (VP (VP (VB measure) (NP (PDT both) (NP (DT the) (NN voltage)) (CC and) (NP (JJ current)))) (, ,) (VP (VB multiply) (NP (PRP them)) (ADVP (RB together))) (CC and) (VP (VB derive) (NP (NN power)))))))) (. .)))
I suppose we could measure both the voltage and current, multiply them together and derive power.
(ROOT (S (NP (NP (NNP Power)) (PP (IN in) (NP (NN electricity)))) (VP (VBZ is) (NP (NP (DT the) (NN voltage)) (VP (VBN multiplied) (PP (IN by) (NP (DT the) (JJ current)))))) (. .)))