abby[9], baby[9], biby[9], boby[9], babi[8], biba[8], abbo[8], babo[8], boba[8], obab[8], bibo[8], boya[7],
bab[7], bib[7], bob[7], aby[6], boy[6], oby[6], bai[5], abo[5], boa[5], oba[5], boi[5], obi[5],
by[5], ba[4], bi[4], bo[4], ii[2],
