a-ak a-ok aaaa aaae aaaf aaar aaea aafa aaff aaka aake aaoe aaoo aara aare aaro aeaf aeer aeka aer- aera aero afaa afak afao afar afee afek afer affa affo afka afkr afoa afoe afoo afor afr- afra afre afro akaa akae akao akar akee aker akka akko akok akr- akra akre aora arae araf arak arar area aree aref arek areo arfa arff arka arke arko aroa aroe aroo aror arr- arra arre arrk arro arrr eaaf eara eare earo eeea eeee eefa eefe eeka eeke eera eero efeo effa efke efor eka- ekek eker ekka ekoa eoka eora eore eraf erer erke eroe eroo erra erre erro f--k faaa fafa fafe faff fafo fake fako fara fare fark faro farr feaf feak fear feek feer fefe feff fefo feke feko feof fera fere ferk fero ferr ffar ffee ffff ffrr foaf foak foar foer fofo foke foof fook for- fora fore fork foro forr frae frak frea free freo froe kaaa kaaf kaak kaar kaeo kaer kafa kafe kaff kafr kaka kake kakk kako kaoa kaok kaor kara kare karf kark karo karr kea- keak kear keef keek keer kefa keff kefr keka keke keko keok ker- kera kere kerf kerk kero kerr kfar kfer kffa kfff kffk kfka kfok kfoo kfor kfra kfre kfro kfrr kkaa kkar kkea kkfr kkkk kkoa kkoo kkor kkre kkrf kkrk kkro kkrr koae koak koar koea kofa kofe koff kofk kofo koka koke kokf kokk koko kokr kook kooo koor kora kore korf kork koro korr krae krak krar krea kree kref krek kreo krfe krff krfo krka krke krkk krko krkr kroa kroe krof krok kroo kror krre krrf krrk krro krrr o-eo oaer oafo oake oara oare oera oere ofek ofer off- offa offe offo offr ofor ofra ofre okak oker okka okko okok okor okra okre okro ooaa ooak ooer ooff oooo oora oore orae orak orao orar ore- orea orek oreo orer orfe orff orka orke orko oro- oroe orof orok oror orra orro raaf raak raef raer rafa rafe raff raka rake rakk raok rara rare rarf rark raro rea- reae reaf reak reao rear reef reek refe reff refr reka reke reko reof rera rere rero rfae rfef rkkf roaf roak roar roea roer rofe roff rofo roka roke rokk roko rokr roof rook roor rora rore rork roro rrrr