-ana a-do aaaa aaab aaad aaaf aaan aaba aabb aabd aada aafa aafb aafd aaff aana aand aaon aaoo abaa abab abad abaf aban abb- abba abbb abbo abda abdo abff aboa abob abod abof abon aboo adaa adab adad adan adao adba adda addd addn addo adfa adna adob adod adon adoo afaa afad afan afao afdb affa affo afoa afoo ana- anaa anab anad anan anao anba anbb anbo and- anda ando anfa anfo anna annb anno ano- anoa anod anon aoba aonb aono baaa baad baaf baan baba babb babo bada badb badd bado baff bafo bana band bann bano baon bbad bbbb bbdd bbdo bbfn bdna boab boad boan boba bobb bobo boda bodb bodo bofa bofd boff bona bond bonn bono boob bood boof boon d-bo d-na daab daad daan daba dabb dabo dada dado dafa daff dafo dana dand dann dano daon dbfo dddd dfaf dffa dnaa dnab dnad dnan doab doan doba dobb dod- doda dodd dodo doff dona dond donn dono doob dood doof doon faaa faad faan faba fabd fabo fada fadd fado fafa faff fafo fana fand fano faon fdoa ffff fndd fndn foad foaf foan foba foda fofo fond fono food foof foon naaa naab naad naan naba nabf nabo nada nadf nafa naff nafo nan- nana nanb nand nann nano nbaa nbad nbaf nbbo nbfa ndaa ndao nddb nddo ndfa ndna nfaa nfda nfff nfon nndb nnnn noaa noba nobo noda nodo non- nona nonn nono noo- noob noon nooo oafo obad oban obba obbo obon odbo odda oddd odnb odon odoo ofan off- offa offo ofna ofno onab onan onda ondo onna onno onod onon ooaa ooba ooda ooff oona oooo