( It ( ( helps ( ( the ( metal ore ) ) ( to melt ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ helps) (S (NP (DT the) (NN metal) (NN ore)) (VP (TO to) (VP (VB melt))))) (. .)))
It helps the metal ore to melt.
(ROOT (S (NP (NNS Metals)) (VP (VBP start) (PRT (RP out)) (PP (IN as) (NP (NN ore)))) (. .)))
Metals start out as ore.