-ana a-do aaaa aaad aaaf aaan aada aafa aafd aaff aana aand aaon aaoo adaa adad adan adao adda addd addn addo adfa adna adod adon adoo afaa afad afan afao affa affo afoa afoo ana- anaa anad anan anao and- anda ando anfa anfo anna anno ano- anoa anod anon aono d-na daad daan dada dado dafa daff dafo dana dand dann dano daon dddd dfaf dffa dnaa dnad dnan doan dod- doda dodd dodo doff dona dond donn dono dood doof doon faaa faad faan fada fadd fado fafa faff fafo fana fand fano faon fdoa ffff fndd fndn foad foaf foan foda fofo fond fono food foof foon naaa naad naan nada nadf nafa naff nafo nan- nana nand nann nano ndaa ndao nddo ndfa ndna nfaa nfda nfff nfon nnnn noaa noda nodo non- nona nonn nono noo- noon nooo oafo odda oddd odon odoo ofan off- offa offo ofna ofno onan onda ondo onna onno onod onon ooaa ooda ooff oona oooo