-ana a-do aaaa aaab aaad aaan aaba aabb aabd aada aana aand aaon aaoo abaa abab abad aban abb- abba abbb abbo abda abdo aboa abob abod abon aboo adaa adab adad adan adao adba adda addd addn addo adna adob adod adon adoo ana- anaa anab anad anan anao anba anbb anbo and- anda ando anna annb anno ano- anoa anod anon aoba aonb aono baaa baad baan baba babb babo bada badb badd bado bana band bann bano baon bbad bbbb bbdd bbdo bdna boab boad boan boba bobb bobo boda bodb bodo bona bond bonn bono boob bood boon d-bo d-na daab daad daan daba dabb dabo dada dado dana dand dann dano daon dddd dnaa dnab dnad dnan doab doan doba dobb dod- doda dodd dodo dona dond donn dono doob dood doon 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 noo- noob noon nooo obad oban obba obbo obon odbo odda oddd odnb odon odoo onab onan onda ondo onna onno onod onon ooaa ooba ooda oona oooo