beerd[7], bered[7], derbe[7], ebers[7], erbes[7], erbse[7], serbe[7],
bede[6], derb[6], eber[6], erbe[6], rebe[6], erde[4], rede[4],
erb[5], der[3], erd[3], red[3], ree[3], des[3], see[3], ers[3], res[3],
er[2], re[2], es[2],
