-hou a-ha aaaa aaab aaah aaar aaba aabb aabh aabt aaha aaoo aara aaro aart aaru aata aatt abaa abab abar abat abau abb- abba abbb abbo abbr abbt abha abho abhr aboa abob aboh aboo abor abot abou abra abro abta abtu abua abut ahab ahah ahar ahat ahau ahha ahoa ahor ahot ahra ahrr ahta ahto ahua aoah aoba aora aorb aort aout arab arah arar arat arau arba arbh arh- aroa arob aroo aror arr- arra arrh arro arrr arrt arru arta arth arto artr arua arub arut at-t ataa atab atar atat atha atho atob ator atot atra atro atru atta atto attr attu atua atub atur auaa auht aur- aura auro aut- auth auto baaa baah baar baat baba babb babo babr babu baha baho bahr baht bahu baoh bar- bara barb barh baro barr bart baru bata bath bato batt batu bau- baur bbau bbbb bhao bhar bhat bhor bhot bhra bhrt bhur bhut bhuu boab boar boat boba bobb bobo bobu boha boho bohr boht bohu boob booh boor boot bor- bora borh boro borr bort boru bota botb both boto bott boua bouh bour bout brab brah brao brat brau broa brob broh broo bror brot brou brrr bruh brut btaa btob btor btrt bttb buar buat buba bubb bubo bubu buha buho buhr bur- bura burb burh buro burr burt buru but- buta buto butt haab haar haat haba habo habt habu haha haho haht haor hara harh haro harr hart haru hata hatb hath hato hatt hatu hau- haut hbar hbtu hhaa hhat hhhh hoar hoat hoba hobo hoha hoho hoor hoot hora horo horr hort hota hotb hoth hoto hotr hott hotu hour hout hrob hrta hrtb htab htoh htra httr huah huba hubb hubo huhu huor huot hura huro hurr hurt huru huta huth huto hutt hutu huub oaau oahu oara oath obba obbo obor obot obra obrh obro obuh ohau ohba ohho ohob ohoh ohra ohta ohto ohtu ooaa ooba ooha ooho oooh oooo oora oort ootb orab orah orao orar orat orba orbb orbo orbu oro- oror orot orra orro orta orth orto orub otar otha otho othr oto- otoh otoo otor otra otro otta otto ottu otur ouat our- oura ouro ourt out- outa outb outh outo ouu- raab raat raba rabb rabo rabu raha rahr raht rahu raob raoh rara rarb raro rata rath rato ratt ratu raua raub raut rbbb rbbr rboh rhau rhoa rhob rhoh roab roar roat rob- roba robb robo robt robu roha rohr rohu roob roor root rora roro rort roru rota roth roto rotr rott roua roub rouh rout rrah rrat rrrr ruah ruba rubb rubu ruhh ruhr rura ruro ruru ruta ruth ruto rutt rutu taa- taar taat taba tabb tabo tabu taha taho tahr tahu taoa taor taou tara tarb taro tarr tart taru tata tatb tath tato tatr tatt tatu taua taub taur taut tbar tbrb tbta thaa thao thar that thau thoo thor thot thou thra thro thru thtb thtr thur toab toat toau toba tobo tobt tobu toho tohu tooa tooh toor toot tora toro torr tort toru tota toth toto totr tott touh tour tout traa trab trao trat trau troa troo trot trou trra trtr trub trut truu ttab ttbb tttt tuao tuar tuat tuba tubb tubo tubr tubu tuht tuhu tuor tura turb turo turr turt turu tuta tuto tutt tutu tuuo uart uaru uata uath uatu uaua ubar ubba ubbo ubra uhoh uhta uhuh uor- urao urat urau urba urho uro- uroa uroo urra urrh urth urur urut utah utau utha utor utto uttu uuta uuuu