( Next ( ( install ( ( a ( 1500 ( W ( series resistor ) ) ) ) ( at ( the ( PG end ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Next)) (VP (VBP install) (NP (NP (DT a) (CD 1500) (NNP W) (NN series) (NN resistor)) (PP (IN at) (NP (DT the) (NNP PG) (NN end))))) (. .)))
Next install a 1500 W series resistor at the PG end.
(ROOT (S (NP (NP (NNS Resistors)) (VP (VBN connected) (NP (NN end)) (S (VP (TO to) (VP (VB end)))))) (VP (VBP are) (VP (VBN said) (S (VP (TO to) (VP (VB be) (PP (IN in) (NP (NN series)))))))) (. .)))