cccc cccu cccv ccee ccrc ccre ccrt cctc cctt cctv ccuc ccut cec- cece cect ceec ceke cer- cerc cere cert cet- cete cetv ckck ckcv cker ckrc crcc crce crcr cre- crec cree cret creu crkc crrt crtc crtv crue cruk crut ctec ctrc ctvt cucc cuce cuck cuek cuer cuk- cuke cure curr curt cut- cutc cute cutt cutv cuve cvcc cver cvet cvrr cvte eccc ecce ecct ecrc ecrr ecru ecrv ect- ectc ectv eeee eeke eerc eetc eete eetu ekek eker eket ekur ercc erce erec erer eret erev erke errc erre ertu eruc erur eruv erve etcc etec etee eter etre ette ettu euer eur- eurc eure eurt ever evet evre evvk kccc kcck kccr kcct kccu kccv kcec kcee kcet kceu kckc kckk kckr kckv kcrc kcrr kcrt kcru kcrv kctc kcte kctu kctv kcue kcuk kcvk kcvr kcvu kcvv keck kecr keek keer keet kekc keke keku ker- kerc kere kerk kerr kert keru kerv ket- ketc kete ketk ketr kett ketu ketv keur keve kevt kkck kkcr kkct kkkk kkrc kkre kkrk kkrr kkrt kkrv kktc kktk kktu kktv kkut kkuu kkvr kkvt kkvu kkvv krcc krce krcu krec kree krek kret kreu krev krkc krke krkk krkr krku krkv krrc krre krrk krrr krrt krtc krtk krtr krtv kruc krue kruk krur krvc krve krvk krvr krvv ktcc ktce ktck ktcr ktcv ktec ktee ktek ktkc ktke ktkk ktkr ktkt ktku ktrc ktre ktrk ktrr ktrt ktru ktrv kttc kttk kttr kttt kttu kttv ktuc ktuv ktvc ktve ktvk ktvr ktvt ktvu kucc kuce kucr kucv kuek kueu kuke kukk kuku kure kurk kurr kurt kuru kurv kute kutr kutt kutu kutv kuuk kuur kuuu kuvr kvcc kvce kvck kvcr kvct kvcu kvcv kvec kver kvet kvrc kvre kvrr kvrv kvtk kvtr kvtt kvtv kvue kvuu kvvr kvvv rccc rcet rctc rctv rcuv rcvr recc rece reck recr rect recu reek reet reev reke rekt rere rert reru rete retr rett reue reuk reut reuu reve rrrr rtcc rtce rtee rtve ruce ruck ruct ruer ruet ruke rukk ruku rurc rure ruru rute rutt rutu ruve ruvu rv-c rver tccc tccu tctc teck tecr tect teec teek teer teet teev teke ter- terc tere terk terr teru tete tetr tett tetu teuk teut trcc tre- trec tree trek tret treu trev trtc trte trtr truc true truk trut truu tter tttt tucc tuck tuer tuet tuke turc ture turk turr turt turu tute tutt tutu tver tvrr tvtv ucrc uctv ucut ukcc ukek ukeu ukrc uktv ukur ure- uret urke urre urte uruk urur urut urve utec uter uttu uuuu uv-c uver uvvu vecc veck veer veet veke ver- vere verk vert vete vetr veur veve vret vruk vtec vuku vurt vutv vver vvvv