bbbee be-er beber beebe beffe beppe berbe berec berre brece breef breer brere brrrr c-p-c cbeff ccccc cebec ceber cebpb cebpe ceere cerc- cerce cerec cerer cerre cpcfc crebe crece creep creer crepe ebber eeeee eepee efere effer eperc erbbe erber erere febre feere ferce ferr- ferre frcpc freep freer frere p-rep pebre peece peere pepee peppe perce perec perer perre prece preef preff rebbe rebec reber recce recep reece reefe reepe reere refer reffe repec reppe rere- reree rperf