( ( ( Superconductor ( A material ) ) ( that ( has ( zero ( bulk ( electrical resistance ) ) ) ) ) ) . )
(ROOT (S (VP (VB Superconductor) (NP (DT A) (NN material)) (SBAR (IN that) (SINV (VBZ has) (NP (CD zero) (JJ bulk) (JJ electrical) (NN resistance))))) (. .)))
Superconductor A material that has zero bulk electrical 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))))))) (. .)))