( ( Among ( ( the zinc ) ( containing ones ) ) ) ( , ( brass ( ( is ( ( an alloy ) ( of ( ( zinc and ) copper ) ) ) ) . ) ) ) )
(ROOT (S (PP (IN Among) (S (NP (DT the) (NN zinc)) (VP (VBG containing) (NP (NNS ones))))) (, ,) (NP (NN brass)) (VP (VBZ is) (NP (NP (DT an) (NN alloy)) (PP (IN of) (NP (NN zinc) (CC and) (NN copper))))) (. .)))
Among the zinc containing ones, brass is an alloy of zinc and copper.
(ROOT (S (NP (NNP Brass) (NNP alloy)) (VP (VBZ is) (VP (VBN made) (PP (IN from) (NP (NN copper) (CC and) (NN zinc))))) (. .)))