c-cor ccccc ceco- ceere cegge ceoce ceoor cerc- cerce cerco cerec cerer cerge cero- ceroc cerou cerre cerro co-co cocc- cocce cocco coceo cocur coeur cogue cooee cooer coore coorg corce core- coree corer coreu corge coro- corre couco couer coure couru crece creer cregg creo- creu- creue croce croco crooe crore cruce cruor crure cuero cuoco cuore curce curer curre curro curug eeeee egger eorre erceg erege erere ergo- eroge eroor erore error erugo eucre euro- eurre gecco geere gegge georg gerce gerre go-go go-oo gocco gocoo gogro gogue googe goore gorce goree gorer gorge gorgo gorre gouge goure grece greco grecu greer grege gregg grego grgur groce groge grogg groue grrrr grure guce gucer guere guero guoge gurge guroo gurre gurro gurur occur ocoee ocree oeco- ogogo ogugu oo-er oocre ooooo oreco oreo- orere orero orgue oroco oroer orrgo oruce oruro ouoro ource oure- r-co- recce recco recog recue recur reece reege reere regec reger regge reggo regur reorg rere- reree reuer ro-ro rocco rocor rocou roero roger rogge rogue rooer rooge roore rooue rorer rouer rouge roure rucer ruegg ruere ruger rugge rurec u-cee ucero ugro- ugrug uouee ureo- urger urour uruce urucu uuuuu