( Superconductors ( ( are ( materials ( that ( lose ( ( ( little or ) ( no energy ) ) ( as ( electricity ( passes ( through them ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNS Superconductors)) (VP (VBP are) (NP (NP (NNS materials)) (SBAR (WHNP (WDT that)) (S (VP (VBP lose) (SBAR (NP (NP (JJ little)) (CC or) (NP (DT no) (NN energy))) (IN as) (S (NP (NN electricity)) (VP (VBZ passes) (PP (IN through) (NP (PRP them))))))))))) (. .)))
Superconductors are materials that lose little or no energy as electricity passes through them.
(ROOT (S (NP (PRP You)) (VP (VBP call) (S (NP (NNS materials)) (ADJP (JJ able) (S (VP (TO to) (VP (VB conduct) (NP (NN electricity)) (PP (IN with) (NP (ADJP (CD 100) (NN %)) (NN efficiency))) (, ,) (S (VP (VBG meaning) (SBAR (IN that) (S (NP (DT no) (NN energy)) (VP (VBZ is) (VP (VBN lost) (PP (IN during) (NP (NP (DT the) (JJ electrical) (NN transmission)) (, ,) (NP (NNS superconductors)))))))))))))))) (. .)))
You call materials able to conduct electricity with 100% efficiency, meaning that no energy is lost during the electrical transmission, superconductors.