bbbb bbbs bbdd bbeb bbrc bcbc bcbs bccc bccs bcde bcds bcec bcer bces bcrs bcru bcsc bcss bcuc bd-r bdbc bddc bdes bdsd bebb bebe beck becs becu bede beds bedu beeb beed beek beer bees beke beks berc berd bere berk berr bers beru bes- bese besk bess beuk beur brcb brce brds breb brec bred bree brek brer bres brkb brrr brrs brsb brsr bruc brud brue brus bsbd bscs bseb bsec bsed bsee bser bses bsrd bssc bssd bsse bubb bube bubs bubu bucc buce buck bucs bucu budb budd bude buds budu buer bueu buke bukk buku bur- burb burd bure burk burr burs buru busc buse busk buss busu buus c-cd cbbc cbbs cbcc cbce cbcr cbcs cbcu cbdb cbdc cbds cbec cbee cber cbkr cbrd cbre cbsc cbse cbus ccbc cccb cccc cccs cccu ccdc ccdr ccds cced ccee ccrc ccre ccrs ccsd ccss ccuc ccus cd-e cd-r cdcs cddb cddr cdec cder cdes cdre cdrs cdss cebs cebu cec- cece cecs cedd cede cedu ceeb ceec cees ceke cer- cerc cerd cere cers cesc cese cesr cess ckbc ckbe ckck ckcs ckdu cker ckrc ckrd cksb crbc crbu crcc crce crcr crdc cre- creb crec cred cree cres creu crkc crss crub crud crue cruk crus cscb cscc cscd csce cscr cscs csdb csdr csec csee cser csks csrc csrd csrs cssd csse cssr csur csus cub- cubb cube cubs cucc cuce cuck cude cuds cued cuek cuer cues cuk- cuke curb curd cure curr curs cusb cusd cusk cuss cusu dbcc dbcs dbrs dbss dbus dcbc dccb dccc dccs dccu dcdb dcds dcrk dcsc dcss dddd ddes ddrc ddre ddss ddub debe debs debu dec- decc decd dece deck decs dedd dede dedu deeb deed deek deer dees dek- deke deks der- derb derc dere derk derr ders des- desc dese desk dess desu deue deuk deur deus dkdc drbc dred dree drek dres drrs drub drue druk drus druu dsbc dscc dscr dscs dsdr dsrc dsrr dssc dub- dubb dubc dube dubs dubu duce duck ducs dudd dude duds dudu duer dues duke duku dure durk duru duse dusk duur ebbc ebbr ebbs ebcc ebed eber ebes ebru ebur ebus ecbc ecbe eccb eccc ecce ecdc eced eces ecks ecrc ecrr ecru ecsc ecse ecss ecsu ecus eddc edde edds ede- eder edes edru edss educ edur eecs eede eedu eeee eees eeke eeks eerc eers eese eesk ekeb eked ekek eker ekes ekur erbb erbe ercc erce erde erds ereb erec ered erer eres erke erks errc erre errs erse erub eruc erur erus esbs escb esce escr escs escu esds esdu esee esek eser eses eske esks esku esrd esse essu esus eubc eucd eude euer eur- eurc eure euse kbbb kbbc kbbd kbbe kbbk kbbr kbbs kbbu kbcb kbce kbck kbcr kbcs kbcu kbdb kbde kbdr kbds kbeb kbec kbed kbee kbek kber kbes kbkb kbkk kbkr kbrb kbrc kbrd kbre kbrk kbru kbsb kbsk kbsr kbss kbsu kbub kbuc kbud kbue kbuk kbur kbus kbuu kcbc kcbd kcbk kcbr kcbs kcbu kccb kccc kccd kcck kccr kccu kcdc kcdd kcdr kcds kcdu kceb kcec kced kcee kceu kckc kckk kckr kcrc kcrr kcrs kcru kcsb kcsc kcsd kcse kcsr kcss kcsu kcub kcue kcuk kdbb kdbr kdbs kdcc kdcd kdce kdcr kddb kddc kddd kddk kddr kdeb kdec kdkb kdkd kdkk kdkr kdrb kdrs kdsc kdsd kdsk kdsr kdss kdsu kdub kduc kdur kdus kebb kebc kebe kebr kebu keck kecr kedb kedc kedd kede kedr keds keed keek keer kees kekb kekc keke keks keku ker- kerb kerc kere kerk kerr kers keru kesb kesc kesd kesk kesr kess keur keus kkbb kkbd kkbe kkbr kkbs kkcb kkcd kkck kkcr kkcs kkdc kkdd kked kkkk kkrb kkrc kkre kkrk kkrr kkrs kksd kkse kksr kkss kksu kkus kkuu krbb krbd krbe krbk krbr krcb krcc krcd krce krcs krcu krdc krdd krde krdr krds krdu kreb krec kred kree krek kres kreu krkc krkd krke krkk krkr krks krku krrb krrc krre krrk krrr krrs krsc krsd krse krsk krsr krss krsu kruc krue kruk krur ksbc ksbr ksbs kscb ksce ksck kscr kscs kscu ksdc ksdk ksdr ksds ksec ksed ksee ksek kser kskb kskd kske kskk kskr ksks ksku ksrb ksrr ksrs ksse kssr ksss kssu ksub ksud ksue ksuu kubb kubc kubd kube kubr kubs kubu kucb kucc kucd kuce kucr kudd kude kudu kued kuek kues kueu kuke kukk kuks kuku kurb kurd kure kurk kurr kurs kuru kusb kusc kusd kusu kuub kuuk kuur kuuu rbbb rbbr rbbs rbds rbsd rbss rcbc rccb rccc rccs rcdc rcde rcds rcrd rcsc rcsd rcss rder rebb rebe rebk rebs rebu recc recd rece reck recr recs recu redc redd rede redr reds redu reeb reed reek rees reke reks rerd rere rers reru rese ress reue reuk reus reuu rkss rred rrrr rscc rscs rsdd rsds rsee rsre rubb rube rubs rubu ruce ruck rudd rude ruds rued ruer rues ruke rukk ruku rurc rurd rure rurs ruru ruse rusk russ rusu ruud sbbs sbcc sbcs sbds sber sbrk sbsd sbse sbus sccc scce sccs scdc scds scec scee scer sck- scr- scrc scre scrs scsc scsd scsr scsu scub scud scur sdcc sddc sdds sder sdes sdrc sdrs sdsc sdss sdsu se-c se-d se-e se-k se-s se-u sebe sebs sec- secc secd sece seck secr secs secu sede seds seeb seec seed seek seer sees seeu seke sekk seku serb serc serd sere serk serr sers seru sesc sese sess seur sked skee sker skes sksd skss skud skue skur srbc srcc srde sreb srec sres srsd srub ssbr sscc ssce sscs ssdc ssdd ssec ssee sses ssrc ssrs sssb sssc ssss sub- subb subd subs suc- succ suck sucr sucs sudd sude suds sued suee suer sues sueu suke suks suku sur- surc surd sure surr surs suru sus- susd suse susk suss susu suus ubbe ubek uber ubud ucbc