abba[8], baba[8], babi[8], biba[8], abat[7], bata[7], bita[7], abst[7], basa[6], saab[6], bias[6], sati[5], siat[5], sita[5], stai[5],
bab[7], bib[7], bat[6], tab[6], bit[6], bai[5], bas[5], bis[5], ata[4], tai[4], sit[4], asa[3], ais[3], sia[3],
ba[4], bi[4], at[3], ta[3], ts[3], aa[2], as[2], si[2],
