abby[9], baby[9], abba[8], baba[8], bebe[8], basy[7], basa[6], saab[6], seba[6],
bab[7], aby[6], bee[5], bas[5], asy[4], esy[4], asa[3],
by[5], ba[4], be[4], aa[2], ee[2], as[2], es[2], se[2],
