berd[7], debr[7], dedr[6], dred[6], rebe[6], bers[6], dres[5], eser[4],
bee[5], ber[5], erb[5], reb[5], der[4], red[4], des[4], ser[3],
be[4], de[3], ee[2], er[2], re[2], es[2], se[2],
