( ( Brass ( a ( copper-rich ( copper-zinc alloy ) ) ) ) . )
(ROOT (S (VP (VB Brass) (NP (DT a) (JJ copper-rich) (JJ copper-zinc) (NN alloy))) (. .)))
Brass a copper-rich copper-zinc alloy.
(ROOT (S (NP (NNP Brass) (NNP alloy)) (VP (VBZ is) (VP (VBN made) (PP (IN from) (NP (NN copper) (CC and) (NN zinc))))) (. .)))