cccc cccp ccee ccoc ccpe ccpp cec- cece ceco cecp ceec ceop cepc cepe cepo cepp coce coco cocp coep coop cope copo copp copy coyo cpce cpep cyc- cycc cypc cyy- cyyc eccc ecce ecco eco- ecop ecpp eeee eeoc epcc epec epee epoc eppc eppo eppp eppy eyec eyey eype o-eo occc oce ocee ocpp oec- oecc oeec oeye oeyo oooo opec opep opo- oppo oppy opye oyce oyee pccc pcce pcep pcoe pcpp pece peco pecy peec peep pepe pepo peyo poce poco poey poop pop- popc pope popo popp popy poyo ppcc pppo pppp ppye pyce pyep pyo- pype pypy yccc ycee yeep yepe yepp yeye yeyo yoop yopo yopy yoye yoyo ypcc yyyy