cccc cccp ccee ccgc ccoc ccpe ccpp ccpr ccrc ccre ccrg ccrp cec- cece ceco cecp ceec cege cego ceop ceor cepc cepe cepo cepp cepr cer- cerc cere cero cerp cery cgcc cgcg cger cgro coce coco cocp coep cogo coop cope copg copo copp copr copy cor- corc core corg coro corp corr cory coyo coyr cpce cpep cper cpre crcc crce crcr cre- crec cree creg creo crep croc croe croo crop cror croy crpc cry- cryo cyc- cycc cyeg cypc cyre cyy- cyyc eccc ecce ecco eco- ecog ecop ecpg ecpp ecrc ecrr eeee eeoc eerc eerg eero eery egcc egcg egcr egec egee eger egge eggo eggp eggy ego- egor egpe egpo egre egry egyo egyr eore epcc epec epee eper epoc epor eppc eppo eppp eppy epro eprp ercc erce ercp erec erer erg- ergg ergo eroc eroe eroo erpe errc erre erro eryc erye eyec eyer eyey eype eyre eyry eyyr gc-c gccc gcpc gcrg gece geep geer gege gegg gego geo- geog gepe gere gero gery gggg ggpo goce gocr goer gogo goog goop goor gopc gope gopo gore gorg goro gorp gorr gory goye gper gpgp gprp grcc grce grec gree greg grep grey groc grog groo grop gror groy grpc grrr gry- grye gyer gyge gyor gype gypo gyr- gyre gyro o-eo occc oce ocee ocpp ocre ocro ocrr oec- oecc oeec oere oeye oeyo ogee oger ogge oggy ogog ogre ogro ogry oocr ooer oooo oore oory opec opep oper opo- opor oppo oppy opry opye orce orco ore- orec oreg oreo orer orey orge orgo orgy oro- oroe oror oroy orpc orpe orro orry oyce oyee oyer oyre pccc pcce pcep pcer pcgg pcoe pcpp pcrc pcre pece peco pecr pecy peec peep peer pegg pego peor pepe pepo per- perc pere perg pero perp perr pery peyo peyr pgcc pgce pger pgrc poce poco poer poey poge pogg pogo pogy poop poor pop- popc pope popo popp popy porc pore porg poro porr pory poyo poyr ppcc pper pppo pppp pprc ppye prcc prcp pre- prec pree preg prep prey pro- proc proe prog proo prop pyce pyep pyg- pygg pyo- pype pypy pyr- pyre pyro pyry rccc rcep rcgc rcpo rcrg rcyc recc rece recp recr recy reep rege rego regr reog reop repe repo repp repr repy rere rerg rero rery reye rocc roce roco roeg roer roey roge rogg rogo rogy roog roop roor rope ropo ropy rorc rore roro rory roye rpoe rpyc rrrr ryge rype yccc ycee yeep yeer yegg yego yepe yepp yere yero yerr yery yeye yeyo yeyr ygoe ygor yogo yoop yopo yopy yore yoro yory yoye yoyo ypcc yyyy