( ( Battery terminals ) ( ( ( ( are ( ( a problem ) ( in ( many cars ) ) ) ) , ) ( because ( ( vapors ( from ( battery acid ) ) ) ( causes ( corrosion ( to ( form ( on ( ( the ( lead ( surfaces ( and ( copper wiring ) ) ) ) ) ( associated ( with ( the ( battery wires ) ) ) ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Battery) (NNS terminals)) (VP (VBP are) (NP (NP (DT a) (NN problem)) (PP (IN in) (NP (JJ many) (NNS cars)))) (, ,) (SBAR (IN because) (S (NP (NP (NNS vapors)) (PP (IN from) (NP (NN battery) (NN acid)))) (VP (VBZ causes) (ADJP (JJ corrosion) (S (VP (TO to) (VP (VB form) (PP (IN on) (NP (NP (DT the) (JJ lead) (NNS surfaces) (CC and) (NN copper) (NN wiring)) (VP (VBN associated) (PP (IN with) (NP (DT the) (NN battery) (NNS wires)))))))))))))) (. .)))
Battery terminals are a problem in many cars, because vapors from battery acid causes corrosion to form on the lead surfaces and copper wiring associated with the battery wires.
(ROOT (S (NP (JJ Lead) (NN sulfate)) (VP (VBZ is) (NP (NP (DT the) (JJ white) (JJ solid)) (SBAR (WHNP (WDT that)) (S (VP (VBZ forms) (PP (IN on) (NP (JJ corroded) (NN battery) (NNS terminals)))))))) (. .)))