-hou cccc cccu cchr ccoc ccrc ccrt cctc cctt ccuc ccut chch chkt choc choh chok choo chor chou chrc chro chrr chrt chto chtr chtt chuk chur chut ckch ckck ckco ckoc ckoo ckor ckot ckrc coch cock coco coct cocu coho cok- coko cooh cook coot cor- corc cork coro corr cort cotc coth coto cott cotu couk cour cout crcc crcr crkc croc croh crok croo cror crot crrt crtc cruk crut ctor ctot ctrc cucc cuck cuk- curo curr curt cut- cutc cuth cuto cutt hccc hcch hhhh hkcc hoch hock hocr hoho hoko hoku hook hoor hoot horc hork horo horr hort hoth hoto hotr hott hotu houk hour hout hrrc htcc htoh htrk httr huch huck hucu huhu huor huot hurk huro hurr hurt huru huth huto hutt hutu kccc kcck kccr kcct kccu kchh kchk kcho kchr kchu kckc kckk kcko kckr kcoh kcor kcot kcou kcrc kcrh kcro kcrr kcrt kcru kctc kcto kctu kcuh kcuk khcc khch khck khct khhk khho khkk khkr khoc khok khor khot khou khrk khro khrr khrt khth khtk khto khtr khtt khuk khur khut kkch kkck kkco kkcr kkct kkhh kkhk kkhr kkkk kkoh kkoo kkor kkot kkrc kkrh kkrk kkro kkrr kkrt kktc kktk kktu kkut kkuu koch kock koct kohh koho kohr koht kohu kokc kokh kokk koko kokr koku kooc kook kooo koor koot koou korc kork koro korr kort koru kotc koth kotk koto kotr kott kotu kour kout kouu krcc krch krco krcu krhc krkc krkh krkk krko krkr krku kroc kroh krok kroo kror krrc krrk krro krrr krrt krtc krth krtk krto krtr kruc kruh kruk krur ktcc ktch ktck ktco ktcr kthc kthh kthk ktho kthr ktht kthu ktkc ktkk ktko ktkr ktkt ktku ktoc ktoh ktok ktoo ktor ktot ktrc ktrh ktrk ktro ktrr ktrt ktru kttc ktth kttk ktto kttr kttt kttu ktuc ktuh kucc kuch kuco kucr kuht kuhu kukh kukk kuku kuok kuoo kurk kuro kurr kurt kuru kuth kuto kutr kutt kutu kuuk kuur kuuu occc occt ocht ocro ocrr oct- octo ocur ohcc ohho ohoh ohok ohto ohtu okcu okko okok okor okot okro okto okur oocr ooho ooku oooh oooo oort orch orco orko oro- orok oror orot orro ortc orth orto otho othr oto- otoh otok otoo otor otro otto ottu otur oucc ouch our- ouro ourt out- outh outo ouu- rccc rctc rhoc rhoh rocc roch rock roco rohr rohu rokh rokk roko rokr roku rook roor root rorc rork roro rort roru rotc roth rotk roto rotr rott rouh rouk rout rrrr rtcc rthk ruch ruck ruct ruhh ruhr rukh rukk ruku ruok rurc ruro ruru ruth ruto rutt rutu tccc tccu tch- tchh tcho tchr tchu tctc thch thoo thor thot thou thro thru thtr thuk thur toch tock toco toho tohu toko toku tooh took toor toot torc tork toro torr tort toru totc toth toto totr tott touh touk tour tout trcc troc troo trot trou trtc trtr truc truk trut truu tttt tucc tuch tuck tuco tuht tuhu tuko tuor turc turk turo turr turt turu tuto tutt tutu tuuo ucho ucrc ucut uhoh uhok uhuh ukcc ukko ukok ukrc ukur uocc uor- urch urho uro- urok uroo urrh urth uruk urur urut utor utto uttu uuoc uuuu