cccc cccl cccp cccu cclc ccoc ccpl ccpp cctc cctl cctt ccuc ccup ccut ckck ckcl ckco ckoc ckoo ckot ckpc clok cloo clop clot clou clpp cltc clut cock coco cocp coct cocu cok- coko col- colk coll colo colp colt colu cook cool coop coot copo copp copt cotc coto cott cotu couk coul coup cout cpcu cplc cptp ctcp ctol ctot ctpo ctpp cucc cuck cuk- culc culk cull culo culp cult cupl cupo cupp cut- cutc cuto cutt k-lo kccc kcck kccl kcct kccu kckc kckk kckl kcko kclc kclk kcll kclt kclu kcol kcot kcou kcpc kcpl kcpo kcpt kcpu kctc kcto kctu kcuk kcul kcup kkck kkcl kkco kkct kkkk kklc kkll kklo kkol kkoo kkot kkpc kkpk kkpl kkpt kktc kktk kktl kktu kkup kkut kkuu klcc klck klcl klkc klkk klkl klko kllc kllk kllp kloc klok klol kloo klop klou klpc kltc kltk klto kltt kluk klup kluu kock kocp koct kokc kokk koko kokp koku kolc kolk koll kolo kolt kolu kooc kook kool kooo koop koot koou kopp kopt kopu kotc kotk koto kott kotu koul kout kouu kpcc kpcl kpkk kpkl kplc kplk kplo kplt kplu kpoc kpok kpol kpoo kpop kpou kppc kppk kppl kppo kppp kptl kpto kptt kpul ktcc ktck ktcl ktco ktkc ktkk ktko ktkt ktku ktlk ktlo ktlt ktlu ktoc ktok ktoo ktop ktot ktpk ktpl ktpo ktpt kttc kttk ktto kttp kttt kttu ktuc ktul kucc kuco kucp kukk kukl kuku kull kulo kulp kult kulu kuok kuol kuoo kuop kupl kupt kupu kuto kutp kutt kutu kuuk kuul kuuu lccc lcpc lcpl lctl lcto llcc lllc llll lloc lloo locc lock loco locu lokk loko loll lolo looc look lool loop loot lopp lopu lotl loto lott louk loul loup lout louu lppl ltcc lttc ltuc luck luko lull lulu lupo lupu luuk luup occc occt oclc ocpp oct- octo ocul okcu okko oklo okok okol okot okpo okto okul olcc ollo olot olpc oltu ooku oolo oooo ootp opo- oppo opto otcl oto- otok otoo otpp otto ottu oucc oulk oulu out- outo ouu- pccc pccl pclk pcll pclo pcpp plcc plkk ploc plok ploo plop plot plou plpp pltt pluk plup pock poco poko poku polk poll polo polt polu pook pool poop poot pop- popc popo popp popt potc poto pott potu pouk poul poup pout ppcc pplo pppo pppp pptt ptcc ptcl ptol ptop pttc pttk puck puku pulk pull pulo pulp pult pulu pupl pupu put- puto putt putu puuc tccc tccu tcpo tctc tcul tkol tlco tock toco toko toku tol- tolk toll tolo tolt tolu took tool toot top- topo topp topt topu totc toto tott touk toul toup tout tpck tpcp tpol tppp tptp tput ttcp ttop tttt ttul tucc tuck tuco tuko tulk tull tulo tulp tulu tupo tupu tutl tuto tutt tutu tuuo uccp ucut ukcc ukko ukok ukup ulcc ulco ullo ulo- uloc ulto ultt uluk ulul uocc uolc uplo uppc uppp uppu uptl upto upup utto uttu uucp uulu uuoc uuuu