enbu[8], beru[8], bure[8], erbu[8], rebe[6], renu[6], uren[6],
bun[7], bru[7], bur[7], bee[5], ben[5], ber[5], erb[5], reb[5], nur[5], run[5], urn[5], ner[3], ren[3],
bu[6], be[4], nu[4], ee[2], en[2], er[2], re[2],
