cccc ccee cche cchr ccoc ccrc ccre cec- cece ceco ceec ceor cer- cerc cere cero chce chch chec chee cheh cher choc choh choo chor chrc chro chrr coce coch coco coho cooh cor- corc core coro corr crcc crce crcr cre- crec cree creh creo croc croe croh croo cror eccc ecce ecco eche echo eco- ecrc ecrr eeee eeoc eerc eero ehcc eheh eher ehre eore ercc erce erch erec erer erhc eroc eroe eroo errc erre erro hccc hcch hech heer hehe heho heor herc here hero herr hhhh hoce hoch hocr hoer hohe hoho hooe hoor horc hore horo horr hree hrrc 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 rccc recc rece rech recr rehe rere rero rhce rhee rheo rhoc rhoh rocc roce roch roco roer rohe rohr roor rorc rore roro rrrr