( ( ( The sulfur ) ( in ( the minerals ) ) ) ( ( turned ( into ( ( ( a combination ) ( of ( ( oxygen and ) sulfur ) ) ) ( called ( `` ( sulfate '' ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (DT The) (NN sulfur)) (PP (IN in) (NP (DT the) (NNS minerals)))) (VP (VBD turned) (PP (IN into) (NP (NP (DT a) (NN combination)) (PP (IN of) (NP (NN oxygen) (CC and) (NN sulfur))) (VP (VBN called) (S (ADJP (`` ``) (JJ sulfate) ('' ''))))))) (. .)))
The sulfur in the minerals turned into a combination of oxygen and sulfur called &quot;sulfate&quot;.
(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))))))) (. .)))