keder[8], krete[8], erdet[5], redet[5],
keep[10], peer[7], reep[7], erde[4], rede[4], reet[4], teer[4],
per[6], rep[6], der[3], erd[3], red[3], ree[3], tee[3],
er[2], re[2], et[2],
