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