( Copper ( ( is ( mixed ( with zinc ) ) ) ( to ( make brass ) ) ) )
(ROOT (S (NP (NN Copper)) (VP (VBZ is) (ADJP (JJ mixed) (PP (IN with) (NP (NN zinc)))) (S (VP (TO to) (VP (VB make) (NP (NN brass))))))))
Copper is mixed with zinc to make brass
(ROOT (S (NP (NNP Brass) (NNP alloy)) (VP (VBZ is) (VP (VBN made) (PP (IN from) (NP (NN copper) (CC and) (NN zinc))))) (. .)))