-ana a-do aaaa aaab aaad aaan aaav aaba aabb aabd aada aana aand aaon aaoo aava abaa abab abad aban abb- abba abbb abbo abda abdo aboa abob abod abon aboo abov abva abvd adaa adab adad adan adao adba adda addd addn addo adna adob adod adon adoo advb ana- anaa anab anad anan anao anba anbb anbo and- anda ando anna annb anno ano- anoa anod anon aoba aonb aono avab avan avao avda avon avva avvo baaa baad baan baba babb babo bada badb badd bado bana band bann bano baon bava bbad bbbb bbdd bbdo bdav bdna boab boad boan boba bobb bobo boda bodb bodo bona bond bonn bono boob bood boon bova bovo d-bo d-na daab daad daan daba dabb dabo dada dado dana dand dann dano daon dava dddd dnaa dnab dnad dnan doab doan doba dobb dod- doda dodd dodo dona dond donn dono doob dood doon dvda dvno dvoa naaa naab naad naan naba nabo nada nan- nana nanb nand nann nano nava navo navv nbaa nbad nbbo ndaa ndao nddb nddo ndna nndb nnnn noaa noba nobo noda nodo non- nona nonn nono noo- noob noon nooo noov nov- nova novo nvda obad oban obba obbo obon odbo odda oddd odnb odon odoo odva onab onan onda ondo onna onno onod onon ooaa ooba ooda oona oooo ovan ovda ovo- ovod ovon ovoo vaad vaan vada vado vana vand vann vano vava vnav voad voda vodo vona vond vonn vvob vvvv