( ( Superconductor ( ( A material ) ( that ( can ( ( conduct electricity ) ( with ( essentially ( zero resistance ) ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Superconductor) (NP (NP (DT A) (NN material)) (SBAR (WHNP (WDT that)) (S (VP (MD can) (VP (VB conduct) (NP (NN electricity)) (PP (IN with) (NP (RB essentially) (CD zero) (NN resistance))))))))) (. .)))
Superconductor A material that can conduct electricity with essentially zero resistance.
(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))))))) (. .)))