preferred_name: sulfate(out) + chloride(in) = sulfate(in) + chloride(out)
preferred_name_lc: sulfate(out) + chloride(in) = sulfate(in) + chloride(out)
label: sulfate(out) + chloride(in) = sulfate(in) + chloride(out)
label_lc: sulfate(out) + chloride(in) = sulfate(in) + chloride(out)