"_ ⇌ s_ium / [b-d-e-i-m-n-p-r-s-t-y-z-ē-ī]*[-long]_s_" . . . "_ ⇌ s_ium / [b-d-e-i-m-n-p-r-s-t-y-z-ē-ī]*[-long]_s_" . .