bek[6], bel[6], ble[6], dek[5], kel[5], kle[5], lek[5], lep[5], pel[5], ple[5], ber[5], erb[5], reb[5], der[4], red[4], ker[4], rek[4], per[4], rep[4],
be[4], de[3], el[3], pe[3], er[2], re[2],
