buce[9], enbu[8], beru[8], bure[8], erbu[8], ceru[7], renu[6], uren[6],
buc[8], bun[7], bru[7], bur[7], ecu[6], cru[6], ben[5], ber[5], erb[5], reb[5], nur[5], run[5], urn[5], cen[4], cne[4], cer[4], ner[3], ren[3],
bu[6], be[4], nu[4], ce[3], en[2], er[2], re[2],
