an> = sp, st, sk, sl, schp, scht, schk, schl, schr, schm, schn,
            pl, pr, pf, bl, br, tr, dr, kl, kr, kn, gl, gr, gn, fr, fl
<span class="special">@init-tri</span> = spl, spr, str, skr, skl, schpl, schpr, schtr, schkr, schkl

<span class="special">@vowel</span> = a, e, i, o, u, y, ä, ü, ö

<span class="special">@coda-one</span> = r, l, m, n, ng, s, sch, p, t, k, b, d, g, f, v, ch
<span class="special">@coda-two</span> = rl, rm, rn, lm, ln, lng, rs, rp, rt, rk, rb, rd, rg, rf, rch,
            l