-ene bbbb bbbs bbeb bbet bcbc bcbs bccc bccs bcec bces bcet bcnu bcsc bcsn bcss bctc bcts bcuc bebb bebe becs becu beeb been bees beet bene benn bens bent benu bes- bese bess best betc bete bets bett betu bnet bnss bscs bseb bsec bsee bses bset bsns bssc bsse bsts btcc btcs btec bten btss bttb btus bubb bube bubs bubu bucc buce bucs bucu buen bueu bunb bune bunn buns bunt bunu busc buse buss bust busu but- bute buts butt buus cbbc cbbs cbcc cbce cbcn cbcs cbct cbcu cbec cbee cbet cbsc cbse cbsn cbtc cbus ccbc ccbn cccb cccc cccs cccu ccee ccnb ccnc ccne ccns ccnu ccsn ccss ccst cctb cctc cctt ccuc ccus ccut cebs cebu cec- cece cecs cect ceeb ceec cees cen- cene cens cent cesc cese cess cest cet- cete cets cnbc cnes cnet cnss cntc cnut cscb cscc csce cscs csec csee cset csne csse cstc csts csus ctbs ctec cten ctne ctns ctsc ctsn ctss ctsu cttn ctts cub- cubb cube cubs cucc cuce cucn cues cune cunt cusb cuss cust cusu cut- cutc cute cuts cutt ebbc ebbs ebcc eben ebes ebus ecbc ecbe eccb eccc ecce ecct eces ecne ecsc ecse ecss ecsu ect- ectc ects ecus eecs eeee eees eens eent eese eetc eete eets eetu enb- enbn ence encs enee enes ennc enne enns ennu ense enst ensu ent- ente ents enue enus enut esbs escb esce escs escu esee esen eses eset esne esse esst essu estc este ests esus etbc etcc etcs etec etee eten etes etne etns etsu ette ettn ettu etun eubc euse nbbc nbcc nbcs ncbc ncbs nccc nccn nccs ncct nccu ncec ncee ncen nces ncnc ncsc ncse ncss ncst nctc ncte ncue nebb nebe nebn nebs nebu necc nece necs nect neeb neen nees neet nene nens nent nenu nesb nesc nese nesn ness nest net- netb nete nets nett neuc neue neun neut neuu nnes nnnn nnss nntn nscc nscs nseb nsec nssb nssc nsse nsss nstc nsts nstu nsub ntbc ntcc ntes nteu ntnu ntsb ntsc ntss ntsu ntuc nubc nube nubs nuce nucs nucu nuee nunc nune nunn nuns nunt nuse nuss nust nusu nute nuts nutt nutu sbbs sbcc sbcs sbct sbse sbst sbtc sbtn sbus sccc scce sccs scct scec scee scet scnt scsc scsn scst scsu sctc sctn scts scub scun scut se-c se-e se-n se-s se-t se-u sebe sebs sebt sec- secc sece secn secs sect secu seeb seec seen sees seet seeu sene senn sens sent sesc sese sess sest set- setc sete sets sett sncc sneb snee snes snet snns snte snub snus ssbn sscc ssce sscs ssec ssee sses sset ssns sssb sssc ssss sstb sstc ssts stbc stbs stcc stcs stcu stec stee sten stes stet stnn stns stss sttc stub stuc stue stun stus stut sub- subb subs suc- succ sucs suee suen sues suet sueu sun- sunb sune sunn suns sunt sunu sus- suse suss sust susu sute sutu suus tbbs tbcb tbcc tbce tbst tcbs tccc tccu tcnn tctc tcts tebu tecs tect teec teen tees teet tenb tenc tene tenn tens tent tenu tesc tese tess test tete tets tett tetu teut tnbc tncc tneb tnes tnts tnut tsbc tscc tsec tsen tses tset tsse tsst tstc tsts tsun ttbb ttcn tten ttss tttt tubb tube tubs tubu tucc tuen tues tuet tunb tunc tune tunn tuns tunu tusc tuss tust tute tuts tutt tutu ubbe ubet ucbc uces ucsb ucsc ucst ucsu ucut uesn uess unbe uncc unce uncs unct uneb unec unee unen unes unne unns uns- unsc unst untb unte unts unus unut usbc usbe usbs uscc usce uscs usee usen uses uset usnc usnu ussb ussc usse usss usst ussu ustb ustc uste usts usun usus utec utes utne utsc uttu uuen uuuu