( ( Zinc ( battery terminals ) ) ( ( are ( an ( ( environmentally friendly ) ( alternative ( to ( lead ( battery terminals ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Zinc) (NN battery) (NNS terminals)) (VP (VBP are) (NP (DT an) (ADJP (RB environmentally) (JJ friendly)) (NN alternative) (S (VP (TO to) (VP (VB lead) (NP (NN battery) (NNS terminals))))))) (. .)))
Zinc battery terminals are an environmentally friendly alternative to lead battery terminals.
(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)))))))) (. .)))