bobas[9], saaba[7],
abba[8], baba[8], abbo[8], babo[8], boba[8], obab[8], basa[6], saab[6], bosa[6],
bab[7], bob[7], abo[5], boa[5], oba[5], bas[5], aaa[3], asa[3], osa[3],
ba[4], bo[4], aa[2], as[2], os[2],
