( ( In ( a ( normal material ) ) ) ( , ( ( ( the flow ) ( of ( electric current ) ) ) ( ( meets ( with resistance ) ) . ) ) ) )
(ROOT (S (PP (IN In) (NP (DT a) (JJ normal) (NN material))) (, ,) (NP (NP (DT the) (NN flow)) (PP (IN of) (NP (JJ electric) (NN current)))) (VP (VBZ meets) (PP (IN with) (NP (NN resistance)))) (. .)))
In a normal material, the flow of electric current meets with resistance.
(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)))))))) (. .)))