oboe[8], bord[7], drob[7], ober[7], robe[7], derb[6], dero[5], oder[5], rode[5],
beo[6], bor[6], erb[5], deo[4], ode[4], rod[4], der[3], erd[3], red[3],
ob[5], do[3], od[3], er[2], re[2],
