c-cd cccc cccp cccs cccu ccdc ccdp ccdr ccds cced ccee ccpe ccpp ccpr ccps ccrc ccre ccrp ccrs ccsd ccsp ccss ccuc ccup ccus cd-e cd-r cdcs cddr cdec cder cdes cdex cdps cdre cdrs cdss cec- cece cecp cecs cedd cede cedu ceec cees ceke cepc cepe cepp cepr ceps cer- cerc cerd cere cerp cers cesc cese cesp cesr cess ceux cexe ckck ckcs ckcx ckdu cker ckpc ckpr ckrc ckrd cpce cpcs cpcu cpep cper cppd cpps cpre cprs cpsc cpsk cpsr cpsu cpsx cpus crcc crce crcr crdc cre- crec cred cree crep cres creu crex crkc crkp crpc crps crsp crss crud crue cruk crup crus crux cscc cscd csce cscr cscs csdp csdr csec csee csep cser csks cspc cspd cspe csps csrc csrd csrs cssd csse cssr csup csur csus cucc cuce cuck cude cuds cued cuek cuer cues cuk- cuke cupe cupp cupr cups curd cure curr curs cusd cusk cusp cuss cusu cxxx dccc dccp dccs dccu dcds dcps dcrk dcsc dcss dcup dcxx dddd ddes ddps ddrc ddre ddss dec- decc decd dece deck decs dedd dede dedu deed deek deep deer dees dek- deke deks depc depe depp depr deps der- derc dere derk derp derr ders des- desc dese desk desp dess desu deue deuk deur deus deux dex- dexe dkdc dpcp dper dppc dppx dprk dpsd dpsu dred dree drek dres drrs drsp drue druk drup drus druu dscc dscp dscr dscs dsdp dsdr dsps dsrc dsrp dsrr dssc dssp duce duck ducs dudd dude duds dudu duer dues duke duku dupe dure durk duru duse dusk duur dxcc dxck dxdc dxdr dxds dxec dxed dxep dxes dxkp dxkr dxkx dxps dxrd dxre dxrk dxrp dxrr dxrx dxsp dxss dxue dxur dxxr dxxx eccc ecce ecdc eced eces ecks ecpd ecpp ecrc ecrr ecru ecsc ecse ecsp ecss ecsu ecus eddc edde eddp edds ede- eder edes edex edru edss educ edup edur eecs eede eedu eeee eees eeke eeks eeps eerc eers eese eesk eked ekek eker ekes ekpe ekur epcc epec epee eper epes eppc eppp epps eprp eprs epsc epsd epsp epss epsx epus epxp er-x ercc erce ercp erde erds erec ered erer eres erke erks erpe erps errc erre errs erse eruc erur erus esce escr escs escu esdp esds esdu esdx esee esek eser eses eske esks esku espc espe espp esps esrd esse essp essu esus eucd eude euer eur- eurc eure euse exec exed exer exes expr exrx kc-x kccc kccd kcck kccr kccu kcdc kcdd kcdr kcds kcdu kcdx kcec kced kcee kcep kceu kckc kckk kckr kckx kcpc kcpr kcps kcpu kcpx kcrc kcrp kcrr kcrs kcru kcrx kcsc kcsd kcse kcsp kcsr kcss kcsu kcue kcuk kcup kcxr kdcc kdcd kdce kdcr kddc kddd kddk kddr kddx kdec kdep kdex kdkd kdkk kdkr kdpr kdps kdrs kdrx kdsc kdsd kdsk kdsp kdsr kdss kdsu kduc kdup kdur kdus kdux kdxe kdxu kdxx keck kecr kedc kedd kede kedp kedr keds keed keek keep keer kees kekc keke keks keku kep- kepc kepd kepe keps kepu kepx ker- kerc kere kerk kerp kerr kers keru kerx kesc kesd kesk kesp kesr kess keup keur keus kexs kexx kkcd kkck kkcr kkcs kkdc kkdd kked kkex kkkk kkpc kkpk kkps kkrc kkre kkrk kkrr kkrs kkrx kksd kkse kksp kksr kkss kksu kkup kkus kkuu kkxk kkxs kkxx kpcc kpcr kpcs kpdc kpdr kpdx kpek kper kpke kpkk kpkr kpkx kppc kppd kppk kppp kppr kprc kprd kpre kprk kprp kprr kprs kpru kpsc kpsd kpsp kpsu kpur kpus kpxp kpxr krcc krcd krce krcs krcu krdc krdd krde krdr krds krdu krdx krec kred kree krek kres kreu krex krkc krkd krke krkk krkr krks krku krkx krpr krps krpu krpx krrc krre krrk krrr krrs krrx krsc krsd krse krsk krsr krss krsu krsx kruc krue kruk krup krur krux krxk krxp krxr krxx ksce ksck kscr kscs kscu ksdc ksdk ksdp ksdr ksds ksec ksed ksee ksek ksep kser ksex kskd kske kskk kskr ksks ksku kskx kspc kspd kspe kspk kspr ksps ksrp ksrr ksrs ksrx ksse kssr ksss kssu kssx ksud ksue ksup ksuu ksux kucc kucd kuce kucp kucr kudd kude kudu kued kuek kues kueu kuke kukk kuks kuku kupd kupe kupr kups kupu kurd kure kurk kurr kurs kuru kusc kusd kusp kusu kuuk kuur kuuu kuxx kxcs kxdc kxdd kxdr kxds kxed kxex kxkc kxkk kxks kxku kxkx kxpc kxpd kxpk kxpr kxps kxrc kxre kxrk kxrp kxrr kxrs kxrx kxsc kxse kxsp kxss kxus kxxe kxxk kxxr kxxx pccc pcce pccs pcep pcer pcks pcpp pcps pcrc pcrd pcre pcse pdcp pdes pdpr pdrc pdrs pdsd pdss pdxk pdxs pece peck pecr pecs ped- pede peds peec peed peek peep peer pees peke pekk pepd pepe peps per- perc perd pere perk perp perr pers peru pese pess pesu peur pkcs ppcc ppcd ppcs ppdk ppds pper pppd pppp ppps pprc ppru ppss ppur prcc prcd prcp prcs pre- prec pred pree prek prep pres preu prex prpd prps prrd prrs prsc prsd prse prss prud prue prus pruu pscu psdc psdp psdr psds psec pspp pspr psps psrd psrk psrp pssc psse pu-e puce puck puds pudu pued puer pueu puke puku pupe pups pupu pur- pure purp purr purs puru pusd pusk puss puuc puxe pxes rccc rccs rcdc rcde rcds rcep rcpd rcps rcrd rcsc rcsd rcss rder rdpc recc recd rece reck recp recr recs recu redc redd rede redr reds redu redx reed reek reep rees reke reks repe repp repr reps repu rerd rere rers reru rese resp ress reue reuk reup reus reuu reux rexx rkss rpcs rpdp rpps rred rrrr rrsp rscc rscs rsdd rsds rsee rspk rsps rsre ruce ruck rudd rude rudp ruds rued ruer rues ruke rukk ruku rupe rupp rurc rurd rure rurp rurs ruru ruse rusk russ rusu ruud rxes sccc scce sccp sccs