-ana a-do aaaa aaab aaad aaan aaba aabb aabd aada aana aand aaon aaoo abaa abab abad aban abax abb- abba abbb abbo abda abdo aboa abob abod abon aboo abox adaa adab adad adan adao adba adda addd addn addo adna adob adod adon adoo adox ana- anaa anab anad anan anao anax anba anbb anbo and- anda ando anna annb anno ano- anoa anod anon anox aoba aonb aono axan axo- axoa axon axxo ba-x baaa baad baan baba babb babo bada badb badd bado bana band bann bano baon bbad bbbb bbdd bbdo bbox bdna boab boad boan boba bobb bobo boda bodb bodo bona bond bonn bono boob bood boon boox boxa d-bo d-na daab daad daan daba dabb dabo dada dado dana dand dann dano daon dddd dnaa dnab dnad dnan dnax do-x doab doan doba dobb dod- doda dodd dodo dona dond donn dono doob dood doon doxa dxab dxbn dxnd dxxx naaa naab naad naan naba nabo nada nan- nana nanb nand nann nano nbaa nbad nbbo ndaa ndao nddb nddo ndna nndb nnnn noaa noba nobo noda nodo non- nona nonn nono nonx noo- noob noon nooo noxa nxdn obad oban obba obbo obon obox odax odbo odda oddd odnb odon odoo onab onan onda ondo onna onno onod onon ooaa ooba ooda oona oooo oxa- oxan oxna oxo- oxon oxox oxxo xado xana xand xano xbox xdna xoan xoxo xxxo xxxx