cccc cccv ccee cche cchr ccoc ccrc ccre ccvo cec- cece ceco ceec ceor cer- cerc cere cero cevo chce chch chec chee cheh cher chev choc choh choo chor chov chrc chro chrr chvo coce coch coco coho cooh cor- corc core coro corr cove covo crcc crce crcr cre- crec cree creh creo croc croe croh croo cror cvcc cver cvrr eccc ecce ecco eche echo eco- ecrc ecrr ecrv eeee eeoc eerc eero ehcc eheh eher ehre eore ercc erce erch erec erer erev erhc eroc eroe eroo errc erre erro erve ever evoe evoo evre hccc hcch hech heer hehe heho heor herc here hero herr heve hhhh hoce hoch hocr hoer hohe hoho hooe hoor horc hore horo horr hove hree hrrc hvcc o-eo occc oce ocee oche ocre ocro ocrr 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 ovee over ovo- ovoo ovre rccc rcvr recc rece rech recr reev rehe rere rero reve revo rhce rhee rheo rhoc rhoh rocc roce roch roco roer roev rohe rohr roor rorc rore roro rove rovo rrrr rv-c rver rvvh vche vecc vech veer veho veoh veor ver- vere vero veve vevo vhhh voce voer voho vooc voor vor- vore voro vreo vrhe vroc vver vvvv