preferred_name: sulfite(in) + sulfate(out) <=> sulfite(out) + sulfate(in)
preferred_name_lc: sulfite(in) + sulfate(out) <=> sulfite(out) + sulfate(in)
label: sulfite(in) + sulfate(out) <=> sulfite(out) + sulfate(in)
label_lc: sulfite(in) + sulfate(out) <=> sulfite(out) + sulfate(in)