-hou cccc cccf cccu ccee ccfc ccff cche cchr ccoc ccrc ccre ccrf ccuc cec- cece ceco ceec cef- cefc ceor ceou cer- cerc cere cerf cero cfcf cfco cffr cfor cfre chce chch chec chee chef cheh cher cheu chfc chfr choc choh choo chor chou chrc chrf chro chrr chur coce coch coco cocu cofc cofe coff coho coof cooh cor- corc core corf coro corr coue cour crcc crce crcr cre- crec cree creh creo creu crfc croc croe croh croo cror crue cucc cuce cuer cufc cuff cufo cure curf curo curr eccc ecce ecco ecef ecfc ecfr eche echo eco- ecou ecrc ecrf ecrr ecru eeee eefe eeoc eerc eero efco efeo efor ehcc eheh eher eheu ehre eore ercc erce erch erec erer erfc erhc erhu eroc eroe eroo errc erre erro eruc eruh erur euch euer eufc eur- eurc eure euro fccf fcch fece fech feer fefc fefe feff fefo fehr fehu feof feoh ferc fere fero ferr feru ffcc ffee ffff ffrr foce foch foco foer fofo fohr foof for- fore foro forr four frcc free freo frfc froe froh frou frue fuc- fufc fuff fufu fuor fur- fure furo furr hccc hcch hcfc hech heef heer hefe hehe heho heor heou herc here hero herr heru heue heur hfce hhhh hhof hoce hoch hocr hoer hofe hoff hofu hohe hoho hooe hoof hoor horc hore horo horr houe houf hour hree hrfc hrrc huch hucu huer hufc hufe huff hufu huhu huor hure huro hurr huru o-eo occc oce ocee ocef oche ocre ocro ocrr ocur oec- oecc oeec oere oeuf ofcr ofer off- offc offe offh offo offr offu ofor ofre ohcc ohee oher ohho ohoh ohre oocr ooer ooff ooho oooh oooo oore orce orch orco ore- orec oreh oreo orer orfe orff orfu orhe oro- oroe orof oror orro oucc ouch ouer oufc oufe ouff our- oure ouro ouu- rccc rcfc recc rece rech recr recu reef refe reff refr refu rehe reof reou rere rero reru reue reuf reuu rfef rffc rhce rhee rheo rhoc rhoh rhue rocc roce roch roco roer rofc rofe roff rofo rohe rohr rohu roof roor rorc rore roro roru roue rouf rouh rrfc rrrr ruce ruch ruer rufc rufe ruff rufo ruhe ruhh ruhr rurc rure ruro ruru uche ucho ucrc ufcu ufer uffe uher uhoh uhuh uocc uofo uor- uore urch ure- ureh urfe urff urho uro- uroo urre urrh urur uuoc uuuu