bach[9], gach[9], abbo[8], babo[8], boba[8], obab[8], boga[8], baco[7], coba[7], obca[7],
bab[7], bob[7], cab[6], ach[6], cha[6], cob[6], hoc[6], och[6], abo[5], boa[5], oba[5], ago[5], hao[5],
ba[4], ag[4], ha[4], bo[4], go[4], ho[4], oh[4], co[3],
