( ( With ( the ( charge ( difference neutralized ) ) ) ) ( , ( ( ( ( ( ( ( ( the bit ) and ) ( the plastic ) ) ( ( no longer ) ( attract ( one another ) ) ) ) , ) so ) ( ( the bit ) ( falls ( back down ) ) ) ) . ) ) )
(ROOT (S (PP (IN With) (NP (DT the) (NN charge) (NN difference) (NN neutralized))) (, ,) (S (NP (NP (DT the) (NN bit)) (CC and) (NP (DT the) (NN plastic))) (VP (ADVP (RB no) (RB longer)) (VBP attract) (NP (CD one) (DT another)))) (, ,) (IN so) (S (NP (DT the) (NN bit)) (VP (VBZ falls) (ADVP (RB back) (RB down)))) (. .)))
With the charge difference neutralized, the bit and the plastic no longer attract one another, so the bit falls back down.
(ROOT (S (NP (JJ Opposite) (NNS charges)) (VP (VBP attract) (NP (CD one) (DT another))) (. .)))