-hou cccc cccu cccv ccee cche cchr ccoc ccrc ccre ccuc ccvo cec- cece ceco ceec ceor ceou cer- cerc cere cero cevo chce chch chec chee cheh cher cheu chev choc choh choo chor chou chov chrc chro chrr chur chvo coce coch coco cocu coho cooh cor- corc core coro corr coue cour cove covo crcc crce crcr cre- crec cree creh creo creu croc croe croh croo cror crue cucc cuce cuer cure curo curr cuve cvcc cver cvrr eccc ecce ecco eche echo eco- ecou ecrc ecrr ecru ecrv eeee eeoc eerc eero ehcc eheh eher eheu ehre eore ercc erce erch erec erer erev erhc erhu eroc eroe eroo errc erre erro eruc eruh erur eruv erve euch euer eur- eurc eure euro ever evoe evoo evre hccc hcch hech heer hehe heho heor heou herc here hero herr heru heue heur heve hhhh hoce hoch hocr hoer hohe hoho hooe hoor horc hore horo horr houe hour hove hree hrrc huch hucu huer huhu huor hure huro hurr huru huve hvcc o-eo occc oce ocee oche ocre ocro ocrr ocur oec- oecc oeec oere ohcc ohee oher ohho ohoh ohre oocr ooer ooho oooh oooo oore orce orch orco ore- orec oreh oreo orer orhe oro- oroe oror orro orve orvr oucc ouch ouer our- oure ouro ouu- ovee over ovo- ovoo ovre rccc rcuv rcvr recc rece rech recr recu reev rehe reou rere rero reru reue reuu reve revo rhce rhee rheo rhoc rhoh rhue rocc roce roch roco roer roev rohe rohr rohu roor rorc rore roro roru roue rouh rove rovo rrrr ruce ruch ruer ruhe ruhh ruhr rurc rure ruro ruru ruve ruvu rv-c rver rvvh uche ucho ucrc uher uhoh uhuh uocc uor- uore uovo urch ure- ureh urho uro- uroo urre urrh urur urve uuoc uuuu uv-c uver uvvu vche vecc vech veer veho veoh veor ver- vere vero veur veve vevo vhhh voce voer voeu voho vohu vooc voor vor- vore voro voru voue vouh vour vreo vrhe vroc vuco vver vvvv