-hou c-cd cccc cccu cccv ccdc ccdh ccdr cced ccee cche cchr ccoc ccod ccrc ccre ccuc ccvo cd-e cd-r cddr cdec cder cdre cdvd cec- cece ceco cedd cede cedo cedu ceec ceor ceou cer- cerc cerd cere cero cevo chce chch chec ched chee cheh cher cheu chev choc chod choh choo chor chou chov chrc chrd chro chrr chud chur chvo coce coch coco cocu codd code coed coho cood cooh cor- corc cord core coro corr coud coue cour cove covo crcc crce crcr crdc cre- crec cred cree creh creo creu croc crod croe croh croo cror crud crue cucc cuce cude cued cuer curd cure curo curr cuve cvcc cver cvrd cvrr dccc dccu dccv dche dcvd dddd ddoc ddrc ddre dec- decc decd dece deco dedd dede dedo dedu deed deer deev dehu deor der- derc dere dero derr derv deue deur deve devo dhec dhed dhee dher dhod dhor dhur doce doch doco docu dod- dodd dode dodo doer dohc dohr dood door dorc dord dore doro dorr doru douc doud doue dour dove dred dree dreh drev drod droh drou drue druu druv duce duch duco dudd dude dudo dudu duer duhe duhr duhu duo- dure duro duru duur duve dvdr dvor eccc ecce ecco ecdc eced eche echo eco- ecod ecou ecrc ecrr ecru ecrv eddc edde eddo ede- edeh eder edoc edod edou edru educ edur edve eede eedu eeee eeoc eerc eero ehcc ehdd eheh eher eheu ehre ehud eocd eode eore ercc erce erch erde erec ered erer erev erhc erhu eroc erod eroe eroo errc erre erro eruc eruh erur eruv erve eucd euch eude euer eur- eurc eure euro ever evoe evoo evre hccc hcch hcdr hcrd hdoc hdod hech hedd hede hedo heed heer hehe heho heor heou herc herd here hero herr heru heue heur heve hhhh hoce hoch hocr hode hodh hodr hoed hoer hohe hoho hood hooe hoor horc hord hore horo horr houd houe hour hove hrdc hree hrod hrrc hrud huch hucu hudd hude hudo hudu hued huer huhu huor hurd hure huro hurr huru huve hvcc o-eo occc oce oced ocee oche ocre ocro ocrr ocur oddd oded odeo oder odoh odoo odor odou odur oec- oecc oedo oeec oere ohcc ohed ohee oher ohho ohoh ohre oocr ooer ooho oooh oooo oord oore orce orch orco orde ordo ordu ore- orec ored oreh oreo orer orhe oro- oroe oror orro orve orvr oucc ouch oudc oude oudh oued ouer our- oure ouro ouu- ovde ovee over ovhd ovo- ovod ovoo ovre rccc rcdc rcde rcrd rcuv rcvr rder rdev rdoc recc recd rece rech recr recu redc redd rede redh redo redr redu reed reev rehe reod reou rerd rere rero reru reue reuu revd reve revo rhce rhee rheo rhoc rhod rhoh rhue rocc roce roch roco rodd rode rodo roed roer roev rohe rohr rohu rood roor rorc rore roro roru roud roue rouh rove rovo rred rrrr ruce ruch rudd rude rudo rued ruer ruhe ruhh ruhr rurc rurd rure ruro ruru ruud ruve ruvu rv-c rved rver rvvh ucdc ucdd uche ucho ucrc uder udev udoh udoo uh-d uhde uher uhoh uhuh uocc uor- uore uovo urch urde urdu ure- ured ureh urho uro- uroo urre urrh urur urve uuoc uuuu uv-c uver uvrd uvvu vche vdcc vdec vder vdre vecc vech vedc vede vedo veer veho veoh veor ver- verd vere vero veur veve vevo vhhh voce vode vodo voer voeu voho vohu vooc voor vor- vord vore voro voru voud voue vouh vour vred vreo vrhe vroc vuco vudu vver vvvv