birem[8],
brem[7], mbir[7], brei[6], brie[6], birr[6], emir[5], remi[5], mirr[5],
bim[6], ber[5], erb[5], reb[5], brr[5], mer[4], rem[4], mir[4], rei[3],
be[4], bi[4], em[3], me[3], im[3], mi[3], er[2], re[2],
