"i_e_e ⇌ e_tu_um / [-spread -lat -labdent]*[-spread -low][-spread -nas -low]_[b-c-d-g-k-m-n-p-q-t]_r_" . . . "i_e_e ⇌ e_tu_um / [-spread -lat -labdent]*[-spread -low][-spread -nas -low]_[b-c-d-g-k-m-n-p-q-t]_r_" . .