tref[9], fere[8], free[8], frez[8], eter[5], tere[5], trze[5], erze[4],
fet[8], tef[8], fee[7], ref[7], fez[7], ret[4], ter[4], tez[4], zet[4], zer[3],
ef[6], fe[6], et[3], te[3], ee[2], er[2], re[2], ez[2], ze[2],
