-ana aaaa aaaf aaan aaar aafa aaff aana aaon aaoo aara aaro afaa afan afao afar affa affo afoa afoo afor afr- afra afro ana- anaa anan anao anar anfa anfo anna anno ano- anoa anon anor aono aora aorn araf aran arar arfa arff arna arno aroa aron aroo aror arr- arra arro arrr faaa faan fafa faff fafo fana fano faon fara faro farr ffar ffff ffrr fnar foaf foan foar fofo fono foof foon for- fora forn foro forr fran fron naaa naan naar nafa naff nafo nan- nana nann nano naor nara narf narn naro narr nfaa nfff nfon nfra nnnn noaa non- nona nonn nono noo- noon nooo noor nor- nora norf norn noro norr nrna nron oafo oara ofan off- offa offo offr ofna ofno ofor ofra onan onar onna onno onon onor onra ooaa ooff oona oooo oora oran orao orar orff orna orno oro- orof oron oror orra orro raaf raan rafa raff rana rann rano rara rarf raro rnaf roaf roan roar roff rofo rona rono roof roon roor rora roro rrna rrrr