berek[8], rebek[8], nerek[6],
brek[7], rebe[6], erek[5],
bek[6], bee[5], ben[5], ber[5], erb[5], reb[5], ker[4], rek[4], ner[3], ren[3],
be[4], ee[2], en[2], er[2], re[2],
