abba[8], baba[8], abbo[8], babo[8], boba[8], obab[8], baca[7], caba[7], baco[7], coba[7], obca[7], obaw[6], owca[5],
bab[7], bob[7], cab[6], cob[6], abo[5], boa[5], oba[5], baw[5], wab[5], owa[3], wow[3],
ba[4], bo[4], co[3], aa[2],
