reffe[11], reffs[11], feder[8], fedre[8], ferse[8], reede[5],
reff[10], fese[7], erde[4], rede[4],
fee[6], fes[6], der[3], erd[3], red[3], ree[3], des[3], see[3], ers[3], res[3],
er[2], re[2], es[2],
