-ene bbbb bbbs bbeb bbpr bbrc bcbc bcbp bcbs bccc bccs bcec bcer bces bcnu bcpp bcps bcrs bcru bcsc bcsn bcss bcuc bcup bebb bebe becs becu beeb been beep beer bees bene benn bens benu berc bere bern berr bers beru bes- bese bess beur bner bnpp bnrr bnss bpcp bprc bpsu brcb brce breb brec bree bren brep brer bres brns brrr brrs brsb brsr bruc brue brun brup brus bscp bscs bseb bsec bsee bser bses bsns bspp bspr bssc bsse bsup bubb bube bubs bubu bucc buce bucs bucu buen buer bueu bunb bune bunn buns bunu bupc bups bur- burb bure burn burp burr burs buru busc buse buss busu buus cbbc cbbs cbcc cbce cbcn cbcp cbcr cbcs cbcu cbec cbee cber cbpc cbpp cbre cbrn cbsc cbse cbsn cbus ccbc ccbn cccb cccc cccp cccs cccu ccee ccnb ccnc ccne ccnp ccnr ccns ccnu ccpe ccpn ccpp ccpr ccps ccrc ccre ccrp ccrs ccsn ccsp ccss ccuc ccup ccus cebp cebs cebu cec- cece cecp cecs ceeb ceec cees cen- cene cens cepc cepe cepp cepr ceps cer- cerc cere cern cerp cers cesc cese cesp cesr cess cnbc cnbp cncp cnep cnes cnrc cnrr cnss cpbc cpce cpcs cpcu cpeb cpep cper cpnb cpns cpps cpre cprs cpsc cpsr cpsu cpus crbc crbu crcc crce crcr cre- creb crec cree cren crep cres creu crne crns crpc crps crsp crss crub crue crun crup crus cscb cscc csce cscr cscs csec csee csep cser csne csnp cspb cspc cspe csps csrc csrs csse cssr csup csur csus cub- cubb cube cubs cucc cuce cucn cuer cues cune cunp cupe cupp cupr cups curb cure curn curr curs cusb cusp cuss cusu ebbc ebbr ebbs ebcc eben eber ebes ebru ebur ebus ecbc ecbe eccb eccc ecce eces ecne ecpp ecrc ecrr ecru ecsc ecse ecsp ecss ecsu ecus eecs eeee eees eens eeps eerc eers eese enb- enbn enbr ence encs enee ener enes ennc enne enns ennu enp- enrs ense ensu enue enur enus epcc epec epee epen eper epes epns eppc eppp epps eprb eprp eprs epsc epsp epss epub epus erbb erbe ercc erce ercp ereb erec eren erer eres erne erns erpe erps errc erre errs erse erub eruc erur erus esbs escb esce escr escs escu esee esen eser eses esne espc espe espn espp esps esse essp essu esus eubc euer eur- eurc eure euse n-up nbbc nbcc nbcs nber nbpp nbps nbsp ncbc ncbs nccc nccn nccp nccr nccs nccu ncec ncee ncen ncep ncer nces ncnc ncpc ncrc ncre ncrp ncsc ncse ncss ncue nebb nebe nebn nebr nebs nebu necc nece necr necs neeb neen neep neer nees nene nens nenu nepc nepe nepr neps nerc nere nerr ners neru nesb nesc nese nesn nesr ness neuc neue neun neur neuu nnes nnnn nnpr nnss npcc npes nppc npss nrcs nren nrpc nrpn nrps nrrc nrsc nrsp nscc nscs nseb nsec nsep nser nsnr nspc nsps nsrc nssb nssc nsse nssp nssr nsss nsub nubc nube nubs nuce nucs nucu nuee nuer nunc nune nunn nuns nupe nups nurc nure nurn nurp nurr nurs nuru nuse nuss nusu pbcc pbrs pbsp pcbc pcbs pccc pcce pccs pcep pcer pcns pcpb pcpn pcpp pcps pcrc pcre pcse pcun pece pecr pecs peec peen peep peer pees pen- penc pene penn pens penu pepe peps per- perc pere pern perp perr pers peru pese pess pesu peun peur pnec pnes pneu pnpp pnsc pnup ppcc ppcs ppen pper pppn pppp ppps pprc ppru ppss ppur prbc prbs prcc prcp prcs pre- preb prec pree pren prep pres preu prnp prps prrs prsc prse prss prue prus pruu psbr pscu pseb psec psnc psnr pspp pspr psps psrp pssc psse pu-e pube pubs pubu puce puer pueu punc pune puns punu pupe pups pupu pur- purb pure purp purr purs puru puss puuc rbbb rbbr rbbs rbsp rbss rcbc rccb rccc rccs rcep rcnr rcps rcsc rcss rebb rebe rebs rebu recc rece recp recr recs recu reeb reen reep rees rene renn rens renu repe repp repr reps repu rere rers reru rese resn resp ress reue reup reus reuu rnbr rncp rncs rnsp rpcs rppn rpps rrrr rrsp rrun rscc rscn rscs rsee rsnn rsnr rspb rsps rsre rubb rube rubp rubs rubu ruce ruen ruer rues runc rune runn runs rupe rupp rurc rure rurp rurs ruru ruse russ rusu ruun sbbs sbcc sbcs sber sbse sbsp sbus sccc scce sccp sccs scec scee scep scer scnr scpb scpe scps scr- scrc scre scrn scrs scsc scsn scsr scsu scub scun scup scur se-c se-e se-n se-s se-u sebe sebs sec- secc sece secn secr secs secu seeb seec seen seep seer sees seeu sene senn senr sens sepe sepn sepp sepr seps sepu serb serc sere sern serp serr sers seru sesc sese sess seur sncc sncp sneb snee snep sner snes snns snpp snrs snub snur snus spcc spcs speb spec spee spen sper spes spne spns spps sprs spse spsp spss spue spun spur spus srbc srcc sreb srec sres srnn srpc srps srsp srub ssbn ssbr sscc ssce sscp sscs ssec ssee ssep sses ssns sspc sspe ssps ssrc ssrs sssb sssc ssss sub- subb subs suc- succ sucr sucs suee suen suer sues sueu sun- sunb sune sunn suns sunu sup- supe supp supr sups sur- surc sure surn surp surr surs suru sus- suse susp suss susu suus u-rp ubbe uber ubpc ucbc uccp uces ucpb ucrc ucsb ucsc ucsu uers uesn uess unbe uncc unce uncp uncs uneb unec unee unen uner unes unne unns unpc unps unrs uns- unsc unus upbe upcs upen upne upnp uppc uppe uppp uppu upsc upse upup urbe urbs ure- ures urne urns urre urse urss ursu urun urup urur urus usbc usbe usbr usbs uscc usce uscs usee usen user uses usnc usnr usnu uspc uspp usps ussb