cccc cccl cccp cccu ccee ccel cclc ccoc ccpe ccpl ccpp ccuc ccup cec- cece ceco cecp ceec ceel cel- celc cele cell celo ceol ceop ceou cepc cepe cepo cepp clec clee cleo clep cleu cloe cloo clop clou clpp clue coce coco cocp cocu coel coep col- cole coll colo colp colu cool coop cope copo copp coue coul coup cpce cpcu cpep cplc cucc cuce culc cule cull culo culp cupe cupl cupo cupp e-cl eccc ecce eccl ecco eco- ecol ecop ecou ecpp eeee eele eeoc el-p elce elco elec elee eleo elle ello ellu elpe elue elul eole eolo epcc epec epee eple epll epoc epol eppc eppo eppp eule lccc lcce lcpc lcpl le-u lece leco leel leep lele lell lelo lelu leoc leou lepe lepo lepp leuc llcc lleu lllc llll lloc lloo locc loce loco locu loeu lole loll lolo looc looe lool loop lope lopp lopu loue loul loup louu lpec lppl luce lule lull lulu lupe lupo lupu luup o-eo occc oce ocee oclc ocpp ocul oec- oecc oeec oele olcc ole- oleo olle ollo olpc olpe oolo oooo opec opel opep ople opo- oppo oucc oule oulu oupe ouu- pccc pcce pccl pcep pcll pclo pcoe pcpp pece pecl peco peec peel peep pel- pele pell pelo pelu peou pepe pepo peul plcc plce ple- plec plee pleo pleu ploc ploo plop plou plpp plue plup poce poco poel pole poll polo polu pool poop pop- popc pope popo popp poul poup ppcc pple pplo pppo pppp pu-e puce puel pueo pueu pule pull pulo pulp pulu pupe pupl pupu puuc uccp ucel uele uell ulcc ulco ulee uleo ulle ullo ulo- uloc ulul uocc uolc uplo uppc uppe uppp uppu upup uucp uulu uuoc uuuu