-hou a-ha aaaa aaah aaar aaha aaoo aara aaro aart aaru aata aatt ahah ahar ahat ahau ahha ahoa ahor ahot ahra ahrr ahta ahto ahua aoah aora aort aout arah arar arat arau arh- aroa aroo aror arr- arra arrh arro arrr arrt arru arta arth arto artr arua arut at-t ataa atar atat atha atho ator atot atra atro atru atta atto attr attu atua atur auaa auht aur- aura auro aut- auth auto haar haat haha haho haht haor hara harh haro harr hart haru hata hath hato hatt hatu hau- haut hhaa hhat hhhh hoar hoat hoha hoho hoor hoot hora horo horr hort hota hoth hoto hotr hott hotu hour hout hrta htoh htra httr huah huhu huor huot hura huro hurr hurt huru huta huth huto hutt hutu oaau oahu oara oath ohau ohho ohoh ohra ohta ohto ohtu ooaa ooha ooho oooh oooo oora oort orah orao orar orat oro- oror orot orra orro orta orth orto otar otha otho othr oto- otoh otoo otor otra otro otta otto ottu otur ouat our- oura ouro ourt out- outa outh outo ouu- raat raha rahr raht rahu raoh rara raro rata rath rato ratt ratu raua raut rhau rhoa rhoh roar roat roha rohr rohu roor root rora roro rort roru rota roth roto rotr rott roua rouh rout rrah rrat rrrr ruah ruhh ruhr rura ruro ruru ruta ruth ruto rutt rutu taa- taar taat taha taho tahr tahu taoa taor taou tara taro tarr tart taru tata tath tato tatr tatt tatu taua taur taut thaa thao thar that thau thoo thor thot thou thra thro thru thtr thur toat toau toho tohu tooa tooh toor toot tora toro torr tort toru tota toth toto totr tott touh tour tout traa trao trat trau troa troo trot trou trra trtr trut truu tttt tuao tuar tuat tuht tuhu tuor tura turo turr turt turu tuta tuto tutt tutu tuuo uart uaru uata uath uatu uaua uhoh uhta uhuh uor- urao urat urau urho uro- uroa uroo urra urrh urth urur urut utah utau utha utor utto uttu uuta uuuu