"scē_r ⇌ _m / [-spread]*[e-i-l-m-n-o-r-u-y-ē-ī-ō-ū][a-e-i]_tu_" . . . "scē_r ⇌ _m / [-spread]*[e-i-l-m-n-o-r-u-y-ē-ī-ō-ū][a-e-i]_tu_" . .