cccc cccl cccp cccu cclc ccnc ccnp ccnu ccoc ccpl ccpn ccpp ccuc ccup ckck ckcl ckco ckln cknc ckoc ckoo ckpc clok clon cloo clop clou clpp clun cnco cncp cock coco cocp cocu cok- coko col- colk coll coln colo colp colu con- conc conk conn cono cook cool coon coop copo copp couk coul coun coup cpcu cplc cucc cuck cucn cuk- culc culk cull culo culp cuno cunp cuon cupl cupo cupp k-lo kccc kcck kccl kccu kckc kckk kckl kckn kcko kclc kclk kcll kcln kclu kcno kcnp kcol kcon kcou kcpc kcpl kcpn kcpo kcpu kcuk kcul kcup kkck kkcl kkcn kkco kkkk kklc kkll kkln kklo kknn kkno kknu kkol kkon kkoo kkpc kkpk kkpl kkpn kkup kkuu klcc klck klcl klcn klkc klkk klkl klkn klko kllc kllk kllp klnc klnn klno kloc klok klol klon kloo klop klou klpc kluk klun klup kluu knck kncn knco kncu knkk knlc knlp knnk knoc knok knol knon knop knou knpc knuk kock kocn kocp kokc kokk kokn koko kokp koku kolc kolk koll koln kolo kolu konc konk kono konp kooc kook kool koon kooo koop koou kopn kopp kopu koul kouu kpcc kpcl kpkk kpkl kplc kplk kpln kplo kplu kpnc kpno kpnp kpoc kpok kpol kpoo kpop kpou kppc kppk kppl kppo kppp kpul kucc kuco kucp kukk kukl kukn kuku kull kuln kulo kulp kulu kunc kunk kuno kunp kunu kuok kuol kuon kuoo kuop kupl kupu kuuk kuul kuuu lccc lcpc lcpl llcc lllc llll lloc lloo lnnk locc lock locn loco locu lokk loko loll lolo lonk lono looc look lool loon loop lopp lopu louk loul loun loup louu lppl luck luko lull lulu lunk lunn luno lupo lupu luuk luup n-up nccc nccn nccp nccu nclc ncln ncnc ncoc ncpc ncuk nkok nlcc nlpc nnnn nock nocl noco noko noll nolo nolp non- nonn nono nonu noo- nook nool noon nooo noop noul noun noup npcc nppc nppl nuck nucu nuku null nunc nunk nunn nuno nuoc nuon nuuk occc occn oclc ocon ocpp ocul okcu okko oklo okno okok okol okon okpo okul okun olcc ollo olon olpc onc- onco onkp onno onon onpu onup ooku oolo oooo opo- opon oppo oucc oulk oulu oun- ouu- pccc pccl pclk pcll pclo pcpn pcpp pcun plcc plkk ploc plok plon ploo plop plou plpp pluk plup pnkp pnln pnnl pnon pnpo pnpp pnup pock poco poko poku polk poll polo polu ponc ponk pono ponp pook pool poon poop pop- popc popo popp pouk poul poun poup ppcc pplo pppn pppo pppp puck puku pulk pull pulo pulp pulu punc punk puno punu pupl pupu puuc uccp ucon ukcc ukko uknc ukok ukon ukup ulcc ulco ullo ulno ulo- uloc uluk ulul uncc uncl unco uncp unkl unkn unko unlp unno unon unop unpc uocc uolc uplo upnp upon uppc uppp uppu upup uucp uulu uuno uuoc uuuu