rexe[11], cers[7], erde[4], rede[4],
exe[10], rex[10], sex[10], cer[6], ces[6], sec[6], der[3], erd[3], red[3], ree[3], des[3], see[3], ers[3], res[3],
ex[9], er[2], re[2], es[2],
