( ( ( ( Ores ( of metals ) ) , ) ( of ( all kinds ) ) ) . )
(ROOT (NP (NP (NNS Ores)) (PP (IN of) (NP (NNS metals))) (, ,) (PP (IN of) (NP (DT all) (NNS kinds))) (. .)))
Ores of metals, of all kinds.
(ROOT (S (NP (NNS Metals)) (VP (VBP start) (PRT (RP out)) (PP (IN as) (NP (NN ore)))) (. .)))
Metals start out as ore.