c-cd cccc cccu ccdc ccdr cced ccee ccrc ccre ccuc cd-e cd-r cddr cdec cder cdre cec- cece cedd cede cedu ceec ceke cer- cerc cerd cere ckck ckdu cker ckrc ckrd crcc crce crcr crdc cre- crec cred cree creu crkc crud crue cruk cucc cuce cuck cude cued cuek cuer cuk- cuke curd cure curr dccc dccu dcrk dddd ddrc ddre dec- decc decd dece deck dedd dede dedu deed deek deer dek- deke der- derc dere derk derr deue deuk deur dkdc dred dree drek drue druk druu duce duck dudd dude dudu duer duke duku dure durk duru duur eccc ecce ecdc eced ecrc ecrr ecru eddc edde ede- eder edru educ edur eede eedu eeee eeke eerc eked ekek eker ekur ercc erce erde erec ered erer erke errc erre eruc erur eucd eude euer eur- eurc eure kccc kccd kcck kccr kccu kcdc kcdd kcdr kcdu kcec kced kcee kceu kckc kckk kckr kcrc kcrr kcru kcue kcuk kdcc kdcd kdce kdcr kddc kddd kddk kddr kdec kdkd kdkk kdkr kduc kdur keck kecr kedc kedd kede kedr keed keek keer kekc keke keku ker- kerc kere kerk kerr keru keur kkcd kkck kkcr kkdc kkdd kked kkkk kkrc kkre kkrk kkrr kkuu krcc krcd krce krcu krdc krdd krde krdr krdu krec kred kree krek kreu krkc krkd krke krkk krkr krku krrc krre krrk krrr kruc krue kruk krur kucc kucd kuce kucr kudd kude kudu kued kuek kueu kuke kukk kuku kurd kure kurk kurr kuru kuuk kuur kuuu rccc rcdc rcde rcrd rder recc recd rece reck recr recu redc redd rede redr redu reed reek reke rerd rere reru reue reuk reuu rred rrrr ruce ruck rudd rude rued ruer ruke rukk ruku rurc rurd rure ruru ruud ucdc ucdd ucrc uder uduk ukcc ukek ukeu ukrc ukur urde urdu ure- ured urke urre uruk urur uuuu