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