( ( ( ( ( ( ( Some superconductors ) ( have ( zero resistance ) ) ) , ) and ) so ) ( there ( ( are ( ( absolutely no ) ( current ( or ( power losses ) ) ) ) ) ( as ( electrons ( move ( through ( the material ) ) ) ) ) ) ) ) . )
(ROOT (S (S (NP (DT Some) (NNS superconductors)) (VP (VBP have) (NP (CD zero) (NN resistance)))) (, ,) (CC and) (IN so) (S (NP (EX there)) (VP (VBP are) (NP (ADJP (RB absolutely) (DT no)) (JJ current) (CC or) (NN power) (NNS losses)) (SBAR (IN as) (S (NP (NNS electrons)) (VP (VBP move) (PP (IN through) (NP (DT the) (NN material)))))))) (. .)))
Some superconductors have zero resistance, and so there are absolutely no current or power losses as electrons move through the material.
(ROOT (S (NP (NNS Superconductors)) (VP (VBP are) (NP (NP (NNS materials)) (PP (IN with) (NP (NP (DT a) (NN resistivity)) (PP (IN of) (NP (CD zero))))))) (. .)))