ket[5], tek[5], kot[5], kto[5], tok[5], eko[4], ker[4], rek[4], kor[4], kro[4], okr[4], ork[4], rok[4], eto[4], ret[4], ter[4], ort[4], rot[4], tor[4], ero[3],
ko[3], ok[3], et[3], te[3], ot[3], to[3], eo[2], er[2], re[2], or[2], ro[2],