cccc cccp cccu cccv ccee ccpe ccpp ccpr ccrc ccre ccrp ccuc ccup cec- cece cecp ceec cepc cepe cepp cepr cer- cerc cere cerp cpce cpcu cpep cper cpre cpvc crcc crce crcr cre- crec cree crep creu crpc crue crup cucc cuce cuer cupe cupp cupr cure curr cuve cvcc cver cvrr eccc ecce ecpp ecrc ecrr ecru ecrv eeee eerc epcc epec epee eper eppc eppp eprp ercc erce ercp erec erer erev erpe errc erre eruc erur eruv erve euer eur- eurc eure ever evre pccc pcce pcep pcer pcpp pcrc pcre pece pecr peec peep peer peev pepe per- perc pere perp perr peru perv peur ppcc pper pppp pprc ppru ppur prcc prcp pre- prec pree prep preu prev prue pruu pu-e puce puer pueu pupe pupu pur- pure purp purr puru puuc rccc rcep rcuv rcvr recc rece recp recr recu reep reev repe repp repr repu rere reru reue reup reuu reve revp rrrr ruce ruer rupe rupp rurc rure rurp ruru ruve ruvu rv-c rver u-rp uccp ucrc uppc uppe uppp uppu upup upvc ure- urre urup urur urve uucp uuuu uv-c uver uvvu vecc veep veer vepe vepr ver- vere veur veve vurp vver vvvv