nabab[9],
abby[9], baby[9], abba[8], baba[8], bany[7], bana[6], napy[6], pany[6], napa[5], pana[5],
bab[7], aby[6], ban[5], nap[4], pan[4], ana[3],
by[5], ba[4], pa[3], ny[3], aa[2], na[2],
