-hou cccc cccu ccee cche cchr ccoc ccrc ccre ccuc cec- cece ceco ceec ceke ceor ceou cer- cerc cere cero chce chch chec chee cheh chek cher cheu choc choh chok choo chor chou chrc chro chrr chuk chur ckch ckck ckco cker ckoc ckoo ckor ckrc coce coch cock coco cocu coho cok- coke coko cooh cook cor- corc core cork coro corr coue couk cour crcc crce crcr cre- crec cree creh creo creu crkc croc croe croh crok croo cror crue cruk cucc cuce cuck cuek cuer cuk- cuke cure curo curr eccc ecce ecco eche echo ecko eco- ecou ecrc ecrr ecru eeee eeke eeoc eerc eero ehcc eheh eher eheu ehre ekch ekco ekek eker ekho ekur eore ercc erce erch erec erer erhc erhu erke eroc eroe eroo errc erre erro eruc eruh erur euch euer eur- eurc eure euro hccc hcch hech heck heek heer hehe heho heke heku heor heou herc here herk hero herr heru heue heuk heur hhhh hkcc hoce hoch hock hocr hoek hoer hohe hoho hoke hoko hoku hooe hook hoor horc hore hork horo horr houe houk hour hree hrrc huch huck hucu huer huhu huke huor hure hurk huro hurr huru kccc kcck kccr kccu kcec kcee kceo kceu kche kchh kchk kcho kchr kchu kckc kckk kcko kckr kcoe kcoh kcor kcou kcrc kcrh kcro kcrr kcru kcue kcuh kcuk kech keck keco kecr keeh keek keer kehk kehr kekc keke keko keku keok ker- kerc kere kerk kero kerr keru keur khcc khch khck khec kher khhk khho khke khkk khkr khoc khoe khok khor khou khrk khro khrr khuk khur kkch kkck kkco kkcr kkhh kkhk kkhr kkkk kkoh kkoo kkor kkrc kkre kkrh kkrk kkro kkrr kkuu koch kock kohh koho kohr kohu kokc koke kokh kokk koko kokr koku kooc kook kooo koor koou korc kore kork koro korr koru koue kour kouu krcc krce krch krco krcu krec kree kreh krek kreo kreu krhc krkc krke krkh krkk krko krkr krku kroc kroe kroh krok kroo kror krrc krre krrk krro krrr kruc krue kruh kruk krur kucc kuce kuch kuco kucr kuek kueu kuhu kuke kukh kukk kuku kuok kuoo kure kurk kuro kurr kuru kuuk kuur kuuu o-eo occc oce ocee oche ocke ocre ocro ocrr ocur oec- oecc oeec oere ohcc ohee oher ohho ohoh ohok ohre okcu okeh oker okko okok okor okre okro okur oocr ooer ooho ooku oooh oooo oore orce orch orco ore- orec oreh orek oreo orer orhe orke orko oro- oroe orok oror orro oucc ouch ouer our- oure ouro ouu- rccc recc rece rech reck recr recu reek rehe reke reko reou rere rero reru reue reuk reuu rhce rhee rheo rhoc rhoh rhue rocc roce roch rock roco roer rohe rohr rohu roke rokh rokk roko rokr roku rook roor rorc rore rork roro roru roue rouh rouk rrrr ruce ruch ruck ruer ruhe ruhh ruhr ruke rukh rukk ruku ruok rurc rure ruro ruru uche ucho ucrc uher uhoh uhok uhuh ukcc ukek ukeu ukko ukok ukrc ukur uocc uoke uor- uore urch ure- ureh urho urke uro- urok uroo urre urrh uruk urur uuoc uuuu