c-cd cccc cccs cccu ccdc ccdr ccds cced ccee ccrc ccre ccrs ccsd ccss ccuc ccus cd-e cd-r cdcs cddr cdec cder cdes cdre cdrs cdss cec- cece cecs cedd cede cedu ceec cees ceke cer- cerc cerd cere cers cesc cese cesr cess ckck ckcs ckdu cker ckrc ckrd crcc crce crcr crdc cre- crec cred cree cres creu crkc crss crud crue cruk crus cscc cscd csce cscr cscs csdr csec csee cser csks csrc csrd csrs cssd csse cssr csur csus cucc cuce cuck cude cuds cued cuek cuer cues cuk- cuke curd cure curr curs cusd cusk cuss cusu dccc dccs dccu dcds dcrk dcsc dcss dddd ddes ddrc ddre ddss dec- decc decd dece deck decs dedd dede dedu deed deek deer dees dek- deke deks der- derc dere derk derr ders des- desc dese desk dess desu deue deuk deur deus dkdc dred dree drek dres drrs drue druk drus druu dscc dscr dscs dsdr dsrc dsrr dssc duce duck ducs dudd dude duds dudu duer dues duke duku dure durk duru duse dusk duur 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 eked ekek eker ekes ekur ercc erce erde erds erec ered erer eres erke erks errc erre errs erse eruc erur erus esce escr escs escu esds esdu esee esek eser eses eske esks esku esrd esse essu esus eucd eude euer eur- eurc eure euse kccc kccd kcck kccr kccu kcdc kcdd kcdr kcds kcdu kcec kced kcee kceu kckc kckk kckr kcrc kcrr kcrs kcru kcsc kcsd kcse kcsr kcss kcsu kcue kcuk kdcc kdcd kdce kdcr kddc kddd kddk kddr kdec kdkd kdkk kdkr kdrs kdsc kdsd kdsk kdsr kdss kdsu kduc kdur kdus keck kecr kedc kedd kede kedr keds keed keek keer kees kekc keke keks keku ker- kerc kere kerk kerr kers keru kesc kesd kesk kesr kess keur keus kkcd kkck kkcr kkcs kkdc kkdd kked kkkk kkrc kkre kkrk kkrr kkrs kksd kkse kksr kkss kksu kkus kkuu krcc krcd krce krcs krcu krdc krdd krde krdr krds krdu krec kred kree krek kres kreu krkc krkd krke krkk krkr krks krku krrc krre krrk krrr krrs krsc krsd krse krsk krsr krss krsu kruc krue kruk krur ksce ksck kscr kscs kscu ksdc ksdk ksdr ksds ksec ksed ksee ksek kser kskd kske kskk kskr ksks ksku ksrr ksrs ksse kssr ksss kssu ksud ksue ksuu kucc kucd kuce kucr kudd kude kudu kued kuek kues kueu kuke kukk kuks kuku kurd kure kurk kurr kurs kuru kusc kusd kusu kuuk kuur kuuu rccc rccs rcdc rcde rcds rcrd rcsc rcsd rcss rder recc recd rece reck recr recs recu redc redd rede redr reds redu reed reek rees reke reks rerd rere rers reru rese ress reue reuk reus reuu rkss rred rrrr rscc rscs rsdd rsds rsee rsre ruce ruck rudd rude ruds rued ruer rues ruke rukk ruku rurc rurd rure rurs ruru ruse rusk russ rusu ruud sccc scce sccs scdc scds scec scee scer sck- scr- scrc scre scrs scsc scsd scsr scsu scud scur sdcc sddc sdds sder sdes sdrc sdrs sdsc sdss sdsu se-c se-d se-e se-k se-s se-u sec- secc secd sece seck secr secs secu sede seds seec seed seek seer sees seeu seke sekk seku serc serd sere serk serr sers seru sesc sese sess seur sked skee sker skes sksd skss skud skue skur srcc srde srec sres srsd sscc ssce sscs ssdc ssdd ssec ssee sses ssrc ssrs sssc ssss 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 ucdc ucdd uces ucrc ucsc ucsd ucsu udds uder udsd uduk uers uess ukcc ukek ukes ukeu ukrc uksc ukur urde urds urdu ure- ured ures urke urre urse urss ursu uruk urur urus us-k uscc usce uscs usdc usde usds used usee user uses uske ussc usse ussr usss ussu usus uuuu