abby[9], baby[9], boby[9], abba[8], baba[8], abbo[8], babo[8], boba[8], obab[8], bobo[8], boya[7], bazy[7], baza[6], bazo[6], oazy[5], oaza[4], oazo[4],
bab[7], bob[7], aby[6], boy[6], oby[6], bzy[6], abo[5], boa[5], oba[5], baz[5], ozy[4], oaz[3], zoo[3],
by[5], ba[4], bo[4], aa[2], za[2], oz[2],
