c-cd cccc cccu ccdc ccdr cced ccee ccrc ccre ccrt cctc cctt ccuc ccut cd-e cd-r cddr cdec cder cdex cdre cec- cece cect cedd cede cedt cedu ceec cer- cerc cerd cere cert cet- cete ceux cexe crcc crce crcr crdc cre- crec cred cree cret creu crex crrt crtc crud crue crut crux ctec ctrc cucc cuce cude cued cuer curd cure curr curt cut- cutc cute cutt cxxx dccc dcct dccu dctc dcxx dddd ddrc ddre dec- decc decd dece dect dedd dede dedu deed deer deet der- derc dere derr dete detr deue deur deut deux dex- dexe dext dred dree dret drue drut druu dtcc dted dttx dtxt duce duct dudd dude dudu duer duet dure durt duru dute duur duut dxcc dxdc dxdr dxec dxed dxrd dxre dxrr dxrt dxrx dxue dxur dxxr dxxx eccc ecce ecct ecdc eced ecrc ecrr ecru ect- ectc eddc edde ede- eder edex edru educ edur eede eedu eeee eerc eetc eete eetu eext er-x ercc erce erde erec ered erer eret errc erre ertu eruc erur etcc etec etee eter etre ette ettu etux eucd eude euer eur- eurc eure eurt exec exed exer exrx exte extr rccc rcdc rcde rcet rcrd rctc rder recc recd rece recr rect recu redc redd rede redr redu redx reed reet rerd rere rert reru retd rete retr rett reue reut reuu reux rexx rred rrrr rtcc rtce rtdt rtee rtex ruce ruct rudd rude rued ruer ruet rurc rurd rure ruru rute rutt rutu ruud tccc tccu tcdd tctc tecr tect tedd tede tedx teec teed teer teet ter- terc tere terr teru tete tetr tett tetu tetx teut text trcc tre- trec tred tree tret treu trex trtc trte trtr truc trud true trut truu trux tter tttt tucc tude tudu tuer tuet turc turd ture turr turt turu tute tutt tutu txtr ucdc ucdd ucrc ucut uder udet uext urde urdu ure- ured uret urex urre urte urur urut utec uter uttu uuuu uxue x-ed xdcc xeer xer- xert xexe xrcd xuxu xxxx