-ene bbbb bbeb bbet bbrc bcbc bccc bcec bcer bcet bcnu bcru bctc bcuc bebb bebe beck becu beeb beek been beer beet beke bene benk benn bent benu berc bere berk bern berr bert beru betc bete bett betu beuk beur bner bnet bnrr brcb brce breb brec bree brek bren brer bret brkb brrr brtc bruc brue brun brut btcc btec btek bten btrc btrt bttb bubb bube bubu bucc buce buck bucu buen buer bueu buke bukk buku bunb bune bunk bunn bunt bunu bur- burb bure burk burn burr burt buru but- bute butt cbbc cbcc cbce cbcn cbcr cbct cbcu cbec cbee cber cbet cbkn cbkr cbre cbrn cbrt cbtc ccbc ccbn cccb cccc cccu ccee ccnb ccnc ccne ccnr ccnu ccrc ccre ccrt cctb cctc cctt ccuc ccut cebu cec- cece cect ceeb ceec ceke cen- cene cent cer- cerc cere cern cert cet- cete ckbc ckbe ckck cken cker cknb cknc cknt ckrc cktb cnbc cnet cnrc cnrr cnrt cntc cntk cntr cnut crbc crbu crcc crce crcr cre- creb crec cree cren cret creu crkc crne crrt crtc crub crue cruk crun crut ctec cten ctne ctrc ctrn cttn cub- cubb cube cucc cuce cuck cucn cuek cuer cuk- cuke cune cunt curb cure curn curr curt cut- cutc cute cutt ebbc ebbr ebcc eben eber ebru ebur ecbc ecbe eccb eccc ecce ecct ecne ecrc ecrr ecru ect- ectc eeee eeke eent eerc eetc eete eetu ekeb ekek eken eker eket ekne ekur enb- enbn enbr ence enee ener enke enkr ennc enne ennu ent- ente entr enue enur enut erbb erbe ercc erce ereb erec eren erer eret erke erne errc erre ertu erub eruc erur etbc etbr etcc etec etee eten eter etne etnr etre ette ettn ettu etun eubc euer eur- eurc eure eurt kbbb kbbc kbbe kbbk kbbr kbbt kbbu kbcb kbce kbck kbcr kbct kbcu kbeb kbec kbee kbek kben kber kbet kbkb kbkk kbkr kbnn kbnr kbnu kbrb kbrc kbre kbrk kbrn kbrt kbru kbtb kbtc kbte kbtk kbtn kbtr kbtt kbub kbuc kbue kbuk kbun kbur kbut kbuu kcbc kcbk kcbr kcbu kccb kccc kcck kccr kcct kccu kceb kcec kcee kcet kceu kckc kckk kckn kckr kcnb kcnr kcnt kcrc kcrn kcrr kcrt kcru kctb kctc kcte kctn kctu kcub kcue kcuk kebb kebc kebe kebn kebr kebt kebu keck kecr keek keen keer keet kekb kekc keke keku ken- kene kenk kenn kenr kent kenu ker- kerb kerc kere kerk kern kerr kert keru ket- ketc kete ketk ketr kett ketu keun keur kkbb kkbe kkbn kkbr kkbt kkcb kkck kkcn kkcr kkct kken kkkk kknb kkne kknn kknt kknu kkrb kkrc kkre kkrk kkrn kkrr kkrt kktc kktk kktu kkut kkuu knbb knbc knbe knbn knbr knbt knbu kncb knce knck kncn kncr knct kncu kneb knec knee knek knen knet kneu knkk knkt knnb knnk knnr knrb knrk knte kntk kntn kntr kntu knub knue knuk knur knut krbb krbe krbk krbr krbt krcb krcc krce krcn krcu kreb krec kree krek kren kret kreu krkc krke krkk krkn krkr krku krnb krne krnk krnn krnt krnu krrb krrc krre krrk krrn krrr krrt krtc krtk krtn krtr kruc krue kruk krun krur ktbb ktbc ktbn ktbr ktbt ktbu ktcc ktce ktck ktcr ktec ktee ktek kten ktkb ktkc ktke ktkk ktkn ktkr ktkt ktku ktnc ktne ktnk ktnn ktnt ktrb ktrc ktre ktrk ktrn ktrr ktrt ktru kttc kttk kttn kttr kttt kttu ktub ktuc ktun kubb kubc kube kubr kubu kucb kucc kuce kucr kuek kuen kueu kuke kukk kukn kuku kunc kune kunk kunr kunt kunu kurb kure kurk kurr kurt kuru kute kutr kutt kutu kuub kuuk kuur kuuu nbbc nbcc nber ncbc nccc nccn nccr ncct nccu ncec ncee ncen ncer ncnc ncrc ncre nctc ncte nctr ncue ncuk nebb nebe nebn nebr nebu necc nece neck necr nect neeb neen neer neet neke neku nene nent nenu nerc nere nerk nerr nert neru net- netb nete nett neuc neue neuk neun neur neut neuu nknt nktr nnnn nntn nren nrrc ntbc ntcc nter nteu ntnu ntrc ntru nttr ntuc nubc nube nubk nuce nuck nucu nuee nuer nuke nuku nunc nune nunk nunn nunt nurc nure nurn nurr nurt nuru nute nutt nutu nuuk rbbb rbbr rcbc rccb rccc rcet rcnr rctc rebb rebe rebk rebu recc rece reck recr rect recu reeb reek reen reet reke rekt rene renk renn rent renu rere rert reru rete retr rett reue reuk reut reuu rnbr rnnt rnut rrrr rrun rtcc rtce rtee rtkn rubb rube rubu ruce ruck ruct ruen ruer ruet ruke rukk rukn ruku runc rune runk runn runt rurc rure ruru rute rutt rutu ruun tbcb tbcc tbce tbrb tccc tccu tcnn tctc tebu teck tecr tect teec teek teen teer teet teke tenb tenc tene tenk tenn tent tenu ter- terc tere terk tern terr teru tete tetr tett tetu teuk teut tnbc tncc tneb tnut trcc tre- trec tree trek tren tret treu trtc trte trtr trub truc true truk trun trut truu ttbb ttcn tten tter tttt tubb tube tubr tubu tucc tuck tuen tuer tuet tuke tunb tunc tune tunk tunn tunu turb turc ture turk turn turr turt turu tute tutt tutu ubbe ubek uber ubet ucbc ucrc ucut ukcc ukek ukeu uknc ukrc ukur unbe uncc unce unct uneb unec unee unen uner unke unkn unne untb unte unut urbe ure- uret urke urne urre urte uruk urun urur urut utec uter utne uttu uuen uuuu