-ene bbbb bbdd bbeb bcbc bccc bcde bcec bcnu bcuc bdbc bddc bebb bebe beck becu bede bedu beeb beed beek been beke bend bene benk benn benu beuk bubb bube bubu bucc buce buck bucu budb budd bude budu buen bueu buke bukk buku bunb bund bune bunk bunn bunu c-cd cbbc cbcc cbce cbcn cbcu cbdb cbdc cbdn cbec cbee cbkn cbnd ccbc ccbn cccb cccc cccu ccdc ccdn cced ccee ccnb ccnc ccne ccnu ccuc cd-e cddb cdec cdnb cdnc cebu cec- cece cedd cede cedu ceeb ceec ceke cen- cend cene ckbc ckbe ckck ckdu cken cknb cknc cnbc cndd cub- cubb cube cucc cuce cuck cucn cude cued cuek cuk- cuke cund cune dbcc dcbc dccb dccc dccu dcdb dddd ddub debe debu dec- decc decd dece deck dedd dede dedu deeb deed deek deen dek- deke dene denk denn denu deue deuk dkdc dnce dnuk dub- dubb dubc dube dubu duce duck dudd dude dudu duke duku dunc dune dunk dunn ebbc ebcc ebed eben ecbc ecbe eccb eccc ecce ecdc eced ecne eddc edde ede- eden educ edun eede eedu eeee eeke eend ekeb eked ekek eken ekne enb- enbn ence end- ende endu ened enee enke ennc enne ennu enue eubc eucd eude kbbb kbbc kbbd kbbe kbbk kbbu kbcb kbce kbck kbcu kbdb kbde kbdn kbeb kbec kbed kbee kbek kben kbkb kbkk kbnd kbnn kbnu kbub kbuc kbud kbue kbuk kbun kbuu kcbc kcbd kcbk kcbu kccb kccc kccd kcck kccu kcdc kcdd kcdu kceb kcec kced kcee kceu kckc kckk kckn kcnb kcnd kcub kcue kcuk kdbb kdbn kdcc kdcd kdce kddb kddc kddd kddk kdeb kdec kden kdkb kdkd kdkk kdkn kdnd kdne kdnk kdnn kdub kduc kdun kebb kebc kebe kebn kebu keck kedb kedc kedd kede keed keek keen kekb kekc keke keku ken- kend kene kenk kenn kenu keun kkbb kkbd kkbe kkbn kkcb kkcd kkck kkcn kkdc kkdd kked kken kkkk kknb kknd kkne kknn kknu kkuu knbb knbc knbe knbn knbu kncb knce knck kncn kncu kndb kndc kndd knde kndk kndn kndu kneb knec kned knee knek knen kneu knkk knnb knnd knnk knub knud knue knuk kubb kubc kubd kube kubu kucb kucc kucd kuce kudd kude kudu kued kuek kuen kueu kuke kukk kukn kuku kunc kund kune kunk kunu kuub kuuk kuuu nbbc nbcc ncbc nccc nccn nccu ncdc ncdn ncdu ncec nced ncee ncen ncnc ncnd ncue ncuk ndcc nddb ndde nebb nebe nebn nebu necc nece neck nedc nedd nede nedu neeb need neen neke neku nend nene nenu neuc neue neuk neun neuu nndb nnnn nubc nube nubk nuce nuck nucu nudc nudd nude nuee nuke nuku nunc nune nunk nunn nuuk ubbe ubek ubud ucbc ucdc ucdd udbc uden uduk udun uend ukcc ukek ukeu uknc unbd unbe uncc unce unde uneb unec uned unee unen unke unkn unne uuen uuuu