-hou cccc cccu cccv ccee cche cchr ccoc ccrc ccre ccuc ccvo cec- cece ceco ceec ceke ceor ceou cer- cerc cere cero cevo chce chch chec chee cheh chek cher cheu chev choc choh chok choo chor chou chov chrc chro chrr chuk chur chvo ckch ckck ckco ckcv cker ckhv ckoc ckoo ckor ckrc ckvo coce coch cock coco cocu coho cok- coke coko cooh cook cor- corc core cork coro corr coue couk cour cove covo 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 cuve cvcc cver cvrr eccc ecce ecco eche echo ecko eco- ecou ecrc ecrr ecru ecrv eeee eeke eeoc eerc eero ehcc eheh eher eheu ehre ekch ekco ekek eker ekho ekur eore ercc erce erch erec erer erev erhc erhu erke eroc eroe eroo errc erre erro eruc eruh erur eruv erve euch euer eur- eurc eure euro ever evoe evoo evre evvk hccc hcch hech heck heek heer hehe heho heke heku heor heou herc here herk hero herr heru heue heuk heur heve hhhh hkcc hoce hoch hock hocr hoek hoer hohe hoho hoke hoko hoku hooe hook hoor horc hore hork horo horr houe houk hour hove hovk hree hrrc huch huck hucu huer huhu huke huor hure hurk huro hurr huru huve hvcc kccc kcck kccr kccu kccv kcec kcee kceo kceu kche kchh kchk kcho kchr kchu kckc kckk kcko kckr kckv kcoe kcoh kcor kcou kcrc kcrh kcro kcrr kcru kcrv kcue kcuh kcuk kcvh kcvk kcvo kcvr kcvu kcvv kech keck keco kecr keeh keek keer kehk kehr kekc keke keko keku keok ker- kerc kere kerk kero kerr keru kerv keur keve khcc khch khck khcv khec kher khhk khho khke khkk khkr khkv khoc khoe khok khor khou khrk khro khrr khrv khuk khur khvh kkch kkck kkco kkcr kkhh kkhk kkhr kkkk kkoh kkoo kkor kkov kkrc kkre kkrh kkrk kkro kkrr kkrv kkuu kkvr kkvu kkvv koch kock kohh koho kohr kohu kokc koke kokh kokk koko kokr koku kooc kook kooo koor koou koov korc kore kork koro korr koru korv koue kour kouu kovc kove kovk kovo kovr krcc krce krch krco krcu krec kree kreh krek kreo kreu krev krhc krhv krkc krke krkh krkk krko krkr krku krkv kroc kroe kroh krok kroo kror krov krrc krre krrk krro krrr kruc krue kruh kruk krur krvc krve krvk krvo krvr krvv kucc kuce kuch kuco kucr kucv kuek kueu kuhu kuke kukh kukk kuku kuok kuoo kure kurk kuro kurr kuru kurv kuuk kuur kuuu kuvo kuvr kvcc kvce kvch kvck kvco kvcr kvcu kvcv kvec kver kvoc kvoe kvoh kvok kvoo kvor kvou kvov kvrc kvre kvrh kvro kvrr kvrv kvue kvuu kvvr kvvv 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 orve orvr oucc ouch ouer our- oure ouro ouu- ovee over ovo- ovoo ovre rccc rcuv rcvr recc rece rech reck recr recu reek reev rehe reke reko reou rere rero reru reue reuk reuu reve revo rhce rhee rheo rhoc rhoh rhue rocc roce roch rock roco roer roev rohe rohr rohu roke rokh rokk roko rokr roku rook roor rorc rore rork roro roru roue rouh rouk rove rovo rrrr ruce ruch ruck ruer ruhe ruhh ruhr ruke rukh rukk ruku ruok rurc rure ruro ruru ruve ruvu rv-c rver rvvh uche ucho ucrc uher uhoh uhok uhuh ukcc ukek ukeu ukko ukok ukrc ukur uocc uoke uor- uore uovo urch ure- ureh urho urke uro- urok uroo urre urrh uruk urur urve uuoc uuuu uv-c uver uvok uvvu vche vecc vech veck veer veho veke veoh veor ver- vere verk vero veur veve vevo vhhh vkor voce voer voeu voho vohu voke vooc voor vor- vore voro voru voue vouh vouk vour vovk vreo vrhe vroc vruk vuco vuku vver vvvv