reepe[8], reede[5], derer[5], erdet[5], redet[5], teere[5],
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],