beru[8], bure[8], erbu[8], biur[8], puer[7], repu[7], brei[6], brie[6], peri[5],
pub[8], bru[7], bur[7], piu[6], ber[5], erb[5], reb[5], rui[5], pie[4], per[4], rep[4], rei[3],
bu[6], be[4], bi[4], pe[3], pi[3], ii[2], er[2], re[2],
