-ene bbbb bbeb bbng bbrc bbrg bcbc bcbg bccc bcec bcer bcnu bcru bcuc bebb bebe beck becu beeb beeg beek been beer begg begu beke bene beng benk benn benu berc bere berg berk bern berr beru beuk beur bgun bneg bner bnrr brcb brce breb brec bree breg brek bren brer brkb brrr bruc brue brug brun bubb bube bubu bucc buce buck bucu buen buer bueu buge bugg buke bukk buku bunb bune bung bunk bunn bunu bur- burb bure burg burk burn burr buru cbbc cbcc cbce cbcn cbcr cbcu cbec cbee cber cbgb cbkg cbkn cbkr cbre cbrn ccbc ccbn cccb cccc cccu ccee ccgc ccnb ccnc ccne ccnr ccnu ccrc ccre ccrg ccuc cebu cec- cece ceeb ceec cege ceke cen- cene ceng cer- cerc cere cern cgcc cgcg cger ckbc ckbe ckck cken cker ckgn cknb cknc ckrc cnbc cnrc cnrr crbc crbu crcc crce crcr cre- creb crec cree creg cren creu crkc crne crub crue crug cruk crun cub- cubb cube cucc cuce cuck cucn cuek cuer cuk- cuke cune curb cure curn curr ebbc ebbr ebcc eben eber ebru ebur ecbc ecbe eccb eccc ecce ecne ecrc ecrr ecru eeee eeke eeng eerc eerg egbe egbu egcc egcg egcr egec egee eger eggb egge egne egre ekeb ekek eken eker ekne ekur enb- enbn enbr ence enee eneg ener enge engg engr enke enkr ennc enne ennu enue enur erbb erbe ercc erce ereb erec eren erer erg- ergg erke erne errc erre erub eruc erur eubc euer euge eur- eurc eure gc-c gcbc gccc gcrg gebe gece geck geek geen geer gege gegg gen- genc gene geng genk genn genu gerb gere gern geru geue geun gggg ggrn gncc gneu gngc gnrc gnrr grbr grcc grce greb grec gree greg gren greu grrr grub grue grug grun grur gubb gubu guck guen guer gugb guge gugg gugu gung gunk gunn gurb gure gurg gurk gurn gurr guru kbbb kbbc kbbe kbbg kbbk kbbr kbbu kbcb kbce kbck kbcr kbcu kbeb kbec kbee kbek kben kber kbgb kbge kbgg kbgn kbgr kbkb kbkg kbkk kbkr kbng kbnn kbnr kbnu kbrb kbrc kbre kbrg kbrk kbrn kbru kbub kbuc kbue kbuk kbun kbur kbuu kcbc kcbk kcbr kcbu kccb kccc kcck kccr kccu kceb kcec kcee kceg kceu kcgc kcgr kckc kckk kckn kckr kcnb kcnr kcrc kcrg kcrn kcrr kcru kcub kcue kcuk kebb kebc kebe kebn kebr kebu kecg keck kecr keek keen keer kege kegg kegk kegr kekb kekc keke keku ken- kene keng kenk kenn kenr kenu ker- kerb kerc kere kerk kern kerr keru keug keun keur kgbb kgbc kgbn kgbr kgcb kgcc kgce kgcn kgcr kgeb kgec kgen kggg kggr kgnb kgnc kgng kgnr kgnu kgrb kgrc kgre kgrg kgrk kgrn kgrr kkbb kkbe kkbg kkbn kkbr kkcb kkck kkcn kkcr kkeg kken kkgb kkgr kkkk kknb kkne kknn kknu kkrb kkrc kkre kkrk kkrn kkrr kkuu knbb knbc knbe knbn knbr knbu kncb knce knck kncn kncr kncu kneb knec knee knek knen kneu kngn kngr knkk knnb knng knnk knnr knrb knrg knrk knub knue knuk knur krbb krbe krbg krbk krbr krcb krcc krce krcg krcn krcu kreb krec kree krek kren kreu krgn krkc krke krkk krkn krkr krku krnb krne krng krnk krnn krnu krrb krrc krre krrg krrk krrn krrr kruc krue krug kruk krun krur kubb kubc kube kubr kubu kucb kucc kuce kucr kuek kuen kueu kugb kuge kugn kugr kuke kukk kukn kuku kunc kune kung kunk kunr kunu kurb kure kurk kurr kuru kuub kuuk kuur kuuu nbbc nbcc nber ncbc nccc nccn nccr nccu ncec ncee ncen ncer ncgr ncnc ncrc ncre ncue ncuk nebb nebe nebn nebr nebu necc nece neck necr neeb neen neer nege neke neku nene neng nenu nerc nere nerk nerr neru neuc neue neuk neun neur neuu ngen nger ngur nguu nkgb nngn nnnn nren nrrc nubc nube nubk nuce nuck nucu nuee nuer nuke nuku nunc nune nung nunk nunn nurc nure nurn nurr nuru nuuk rbbb rbbr rcbc rccb rccc rcgc rcnr rcrg rebb rebe rebk rebu recc rece reck recr recu reeb reek reen rege regn regr regu reke rene reng renk renn renu rere rerg reru reue reuk reuu rgbe rnbr rrrr rrun rubb rube rubu ruce ruck ruen ruer ruge rugg ruke rukk rukn ruku runc rune rung runk runn rurc rure ruru ruun ubbe ubek uber ucbc ucrc ugcc ugcg ugne ugur uguu ukcc ukek ukeu uknc ukrc ukur unbe uncc unce uncg uneb unec unee unen uner ungu unke unkn unne urbe ure- urge urgu urke urne urre uruk urun urur uuen uuuu