"isce_e ⇌ tu_um / [a-e-i-n-r-ā-ē-ī]*[b-d-p-t][-long][b-c-d-g-k-l-p-q-r-s-t-z]_r_" . . . "isce_e ⇌ tu_um / [a-e-i-n-r-ā-ē-ī]*[b-d-p-t][-long][b-c-d-g-k-l-p-q-r-s-t-z]_r_" . .