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