cccc cccv ccee cche cchr ccoc ccrc ccre ccvo cec- cece ceco ceec ceke ceor cer- cerc cere cero cevo chce chch chec chee cheh chek cher chev choc choh chok choo chor chov chrc chro chrr chvo ckch ckck ckco ckcv cker ckhv ckoc ckoo ckor ckrc ckvo coce coch cock coco coho cok- coke coko cooh cook cor- corc core cork coro corr cove covo crcc crce crcr cre- crec cree creh creo crkc croc croe croh crok croo cror cvcc cver cvrr eccc ecce ecco eche echo ecko eco- ecrc ecrr ecrv eeee eeke eeoc eerc eero ehcc eheh eher ehre ekch ekco ekek eker ekho eore ercc erce erch erec erer erev erhc erke eroc eroe eroo errc erre erro erve ever evoe evoo evre evvk hccc hcch hech heck heek heer hehe heho heke heor herc here herk hero herr heve hhhh hkcc hoce hoch hock hocr hoek hoer hohe hoho hoke hoko hooe hook hoor horc hore hork horo horr hove hovk hree hrrc hvcc kccc kcck kccr kccv kcec kcee kceo kche kchh kchk kcho kchr kckc kckk kcko kckr kckv kcoe kcoh kcor kcrc kcrh kcro kcrr kcrv kcvh kcvk kcvo kcvr kcvv kech keck keco kecr keeh keek keer kehk kehr kekc keke keko keok ker- kerc kere kerk kero kerr kerv keve khcc khch khck khcv khec kher khhk khho khke khkk khkr khkv khoc khoe khok khor khrk khro khrr khrv khvh kkch kkck kkco kkcr kkhh kkhk kkhr kkkk kkoh kkoo kkor kkov kkrc kkre kkrh kkrk kkro kkrr kkrv kkvr kkvv koch kock kohh koho kohr kokc koke kokh kokk koko kokr kooc kook kooo koor koov korc kore kork koro korr korv kovc kove kovk kovo kovr krcc krce krch krco krec kree kreh krek kreo krev krhc krhv krkc krke krkh krkk krko krkr krkv kroc kroe kroh krok kroo kror krov krrc krre krrk krro krrr krvc krve krvk krvo krvr krvv kvcc kvce kvch kvck kvco kvcr kvcv kvec kver kvoc kvoe kvoh kvok kvoo kvor kvov kvrc kvre kvrh kvro kvrr kvrv kvvr kvvv o-eo occc oce ocee oche ocke ocre ocro ocrr oec- oecc oeec oere ohcc ohee oher ohho ohoh ohok ohre okeh oker okko okok okor okre okro oocr ooer ooho oooh oooo oore orce orch orco ore- orec oreh orek oreo orer orhe orke orko oro- oroe orok oror orro orve orvr ovee over ovo- ovoo ovre rccc rcvr recc rece rech reck recr reek reev rehe reke reko rere rero reve revo rhce rhee rheo rhoc rhoh rocc roce roch rock roco roer roev rohe rohr roke rokh rokk roko rokr rook roor rorc rore rork roro rove rovo rrrr rv-c rver rvvh vche vecc vech veck veer veho veke veoh veor ver- vere verk vero veve vevo vhhh vkor voce voer voho voke vooc voor vor- vore voro vovk vreo vrhe vroc vver vvvv