abba[8], baba[8], abbo[8], babo[8], boba[8], obab[8], baza[6], bazo[6], oaza[4],
bab[7], bob[7], abo[5], boa[5], oba[5], baz[5], oaz[3], zza[3],
ba[4], bo[4], aa[2], za[2], oz[2],
