( ( ( ( ( The resistance ) ( of ( ( a material ) ( to passage ) ) ) ) ( through it ) ) ( of ( an ( electric current ) ) ) ) . )
(ROOT (NP (NP (DT The) (NN resistance)) (PP (IN of) (NP (NP (DT a) (NN material)) (PP (TO to) (NP (NN passage))))) (PP (IN through) (NP (PRP it))) (PP (IN of) (NP (DT an) (JJ electric) (NN current))) (. .)))
The resistance of a material to passage through it of an electric current.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (NNS materials)) (SBAR (WHNP (WDT that)) (S (VP (VBP have) (NP (JJ high) (NN resistance)) (PP (TO to) (NP (JJ electric) (JJ current) (JJ electric) (NNS insulators)))))))) (. .)))