c-cor ccccc ceco- ceere cefor cegge ceoce ceoor cerc- cerce cerco cerec cerer cerge cero- ceroc cerre cerro co-co cocc- cocce cocco coceo cofer coffe cofre cooee cooer coore coorg corce core- coree corer corfe corfo corge coro- corre crece creer cregg creo- croce croco crooe crore ecoff eeeee efere effer efore egger eofor eorre erceg erege erere ergo- eroge eroor erore error feeor feere fefor feoff ferce ferr- ferre ferro focer foggo foore force fore- foreo forge forgo forro frcog freer frege frere frore gecco geere gegge geoff georg gerce gerre go-go go-oo gocco gocoo gofer goffe gofor gogro gooff googe goore gorce goree gorer gorge gorgo gorre grece greco greef greer grefe greff grege gregg grego groce grofe groff groge grogg groof grrrr o-fer ocoee ocree oeco- offer offof offre ogogo oo-er oocre ooooo oreco oreo- orere orero orfeo orfoe orfor oroco oroer orrgo r-co- recce recco recog reece reefe reege reere refco refer reffe reffo regec reger regge reggo reorg rere- reree ro-ro rocco rocor roero roffe rofor roger rogge rooer roofe rooge roore rorer