a-fu aaaa aaae aaaf aaar aaav aaea aaev aafa aaff aaoe aaoo aara aare aaro aaru aava aeaf aeer aer- aera aero aeva afaa afao afar afee afer affa affo afoa afoe afoo afor afr- afra afre afro afru afua afue aoeu aora aouf arae araf arar arau area aree aref areo areu arev arfa arff arfu aroa aroe aroo aror arr- arra arre arro arrr arru arua arue arva arve arvo auaa auer aufe aur- aura aure auro auve avao avar avea aveo aver aveu avor avou avra avre avro avur avva avvo eaaf eara eare earo eave eeea eeee eefa eefe eera eero eeva efeo effa efor efua eora eore eraf erau erer erev eroe eroo erra erre erro erua erur eruv erve euer eur- eura eure euro evae evar evea ever evoe evoo evra evre faaa fafa fafe faff fafo fara fare faro farr faru faue faur fava fave feaf fear feer fefe feff fefo feof fera fere fero ferr feru ferv feve fevr ffar ffee ffff ffrr foaf foar foer fofo foof for- fora fore foro forr foua four fove fr-v frae frau frea free freo froe frou frue fuar fuff fufu fuor fur- fura fure furo furr o-eo oaau oaer oafo oara oare oera oere oeuf ofer off- offa offe offo offr offu ofor ofra ofre ooaa ooer ooff oooo oora oore orae orao orar orav ore- orea oreo orer orfe orff orfu oro- oroe orof oror orra orro orve orvr ouea ouer oufe ouff our- oura oure ouro ouu- ovar ovee over ovo- ovoo ovra ovre raaf raef raer rafa rafe raff rara rare rarf raro raua raue rauf rava rave rea- reae reaf reao rear reau reef reev refe reff refr refu reof reou rera rere rero reru reue reuf reuu reva reve revo rfae rfef roaf roar roea roer roev rofe roff rofo roof roor rora rore roro roru roua roue rouf rova rove rovo rrrr ruer rufa rufe ruff rufo rura rure ruro ruru ruve ruvu rver uafa uaru uaua uefa ufer uffa uffe ufra uofa uofo uor- uore uovo urao urau ure- urea urfa urfe urff uro- uroa uroo urra urre urur urva urve uuuu uv-a uvaa uvae uvea uver uvvu vaar vafa vara vare varf varr varu vava vear veau veer vefa veor ver- vera vere vero veur veve vevo vfor voar voer voeu voff vofr voor vor- vora vore voro voru voue vour vrav vref vreo vver vvvv