( ( The ( sulfuric acid ) ) ( ( is ( ( reused ( in ( place ( of ( the ( sulfur trioxide ) ) ) ) ) ) ( to ( leach ( more ( zinc oxide ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT The) (JJ sulfuric) (NN acid)) (VP (VBZ is) (VP (VBN reused) (PP (IN in) (NP (NP (NN place)) (PP (IN of) (NP (DT the) (NN sulfur) (NN trioxide))))) (S (VP (TO to) (VP (VB leach) (NP (JJR more) (NN zinc) (NN oxide))))))) (. .)))
The sulfuric acid is reused in place of the sulfur trioxide to leach more zinc oxide.
(ROOT (S (NP (NNP Sulfur)) (VP (MD can) (VP (VB combine) (PP (IN with) (NP (NN oxygen))) (S (VP (TO to) (VP (VB produce) (NP (NN sulfur) (NN trioxide))))))) (. .)))