"ciet ⇌ sum / [-spread -lat -labdent -low]*[f-r-s-z][a-e][e-i-o-r-u-y-ē-ī-ō-ū]_" . . . "ciet ⇌ sum / [-spread -lat -labdent -low]*[f-r-s-z][a-e][e-i-o-r-u-y-ē-ī-ō-ū]_" . .