-hou a-be a-fu a-ha aaaa aaab aaae aaaf aaah aaar aaba aabb aabh aaea aafa aafb aaff aaha aaoe aaoo aara aare aaro aaru abaa abab abae abaf abar abau abb- abba abbb abbe abbo abbr abee aber abff abha abho abhr aboa abob abof aboh aboo abor abou abra abro abua abue abuf aeaf aeer aer- aera aero afaa afao afar afee afer affa affo afoa afoe afoo afor afr- afra afre afro afru afua afue ahab ahah ahar ahau ahfa ahha ahoa ahoe ahor ahra ahre ahrr ahua aoah aoba aoeu aora aorb aouf arab arae araf arah arar arau arba arbe arbh area aree aref areh areo areu arfa arfb arff arfu arh- aroa arob aroe aroo aror arr- arra arre arrh arro arrr arru arua arub arue auaa aube auer aufe aur- aura aure auro baaa baaf baah baar baba babb babe babo babr babu baer baff bafo baha baho bahr bahu baoh bar- bara barb bare barf barh baro barr baru bau- bauf baur bbau bbbb bbeb beaf beah bear beau beba bebb bebe bebo beeb beef beer befa befe beff befo behr beo- beof beor bera bere bero berr beru beur bhao bhar bher bhff bhor bhra bhur bhuu boab boar boba bobb bobe bobo bobu boea boee boef boeo boer bofa bofe boff bofh bofu boha boho bohr bohu boob booe boof booh boor bor- bora bore borf borh boro borr boru boua boue bouf bouh bour brab brae braf brah brao brau brea breb bree bref breo brer brfu broa brob broe broh broo bror brou brrr brue bruh buar buba bubb bube bubo bubu buea buer bueu bufe buff bufo bufr buha buhe buho buhr bur- bura burb bure burh buro burr buru eaaf eaba eabh eafb eara earb eare earh earo ebba ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeea eeee eefa eefe eera eero efab efbr efeo effa efor efua ehaa ehea eheh eher eheu ehre eora eore eraf erau erba erbb erbe ereb erer erhu erob eroe eroo erra erre erro erua erub eruh erur euba euer eur- eura eure euro faaa faah faba fabe fabo fabu faeb fafa fafe faff fafo faha fahr fara farb fare faro farr faru faue faur fbar feaf fear feba febo feeb feer fefe feff fefo fehr fehu feof feoh fera ferb fere fero ferr feru ffar ffee ffff ffrr foaf foar foba foer fofo fohr foof for- fora forb fore foro forr foua four frab frae frau frea free freo frob froe froh frou frub frue fuar fubb fubu fuff fufu fuor fur- fura fure furo furr haab haaf haar haba habe habo habu hafb hafe haff haha haho haor hara hare harf harh haro harr haru hau- haue hauf hbar heaf heah hear hebb hebe hebo hebr heeb heef heer hefe hehe heho heor heou hera herb here hero herr heru heue heur hfba hhaa hhhh hhof hoar hoba hobe hobo hoer hofe hoff hofu hoha hohe hoho hooe hoof hoor hora hore horo horr houe houf hour hree hrob huah huba hubb hube hubo huea huer hufe huff hufu huhu huor hura hure huro hurr huru huub o-eo oaau oaer oafo oahe oahu oara oare obba obbo obea ober oboe obor obra obre obrh obro obuh oera oere oeuf ofah ofer off- offa offe offh offo offr offu ofor ofra ofre ohau ohba ohbe ohee oher ohho ohob ohoh ohra ohre ooaa ooba oobe ooer ooff ooha ooho oooh oooo oora oore orab orae orah orao orar orba orbb orbe orbo orbu ore- orea oreb oreh oreo orer orfe orff orfu orhe oro- oroe orof oror orra orro orub ouea ouer oufe ouff our- oura oure ouro ouu- raab raaf raba rabb rabe rabo rabu raef raer rafa rafe raff raha rahe rahr rahu raob raoh rara rarb rare rarf raro raua raub raue rauf rbaf rbbb rbbr rboh rea- reae reaf reao rear reau reba rebb rebe rebo rebu reeb reef refe reff refr refu reha rehb rehe reof reou rera rere rero reru reue reuf reuu rfae rfef rhae rhau rhea rheb rhee rheo rhoa rhob rhoh rhue roab roaf roar rob- roba robb robe robo robu roea roer rofe roff rofo roha rohe rohr rohu roob roof roor rora rore roro roru roua roub roue rouf rouh rrah rrrr ruah ruba rubb rube rubu ruer rufa rufe ruff rufo ruhe ruhh ruhr rura rure ruro ruru uafa uaru uaua ubar ubba ubbe ubbo uber ubra ueba uefa ufer uffa uffe ufra uher uhoh uhuh uofa uofo uor- uore urao urau urba urbe ure- urea ureh urfa urfe urff urho uro- uroa uroo urra urre urrh urur uuuu