c-cd cccc cccv ccdc ccdr cced ccee ccrc ccre cd-e cd-r cddr cdec cder cdre cdvd cec- cece cedd cede cedy ceec cer- cerc cerd cere cery cevy crcc crce crcr crdc cre- crec cred cree cry- cvcc cver cvrd cvrr cyc- cycc cyre cyve cyy- cyyc dc-y dccc dccv dcvd dddd ddrc ddre ddry dec- decc decd dece dedd dede deed deer deev der- derc dere derr derv dery deve devy deye deyr dred dree drev drey dry- drye dvdr dycd dyce dydd dyde dyed dyer dyey dyr- dyrc dyre dyyr eccc ecce ecdc eced ecrc ecrr ecrv ecyd eddc edde eddy ede- eder edve eede eeee eerc eery ercc erce erde erec ered erer erev errc erre erve eryc erye ever evey evre evry eyec eyed eyer eyey eyre eyry eyyr rccc rcdc rcde rcrd rcvr rcyc rder rdev recc recd rece recr recy redc redd rede redr redy reed reev rerd rere rery revd reve revy reyd reye rred rrrr rv-c rved rver ryde rydy vdcc vdec vder vdre vecc vedc vede veer ver- verd vere very veve vevy veye veyr vrdy vred vver vvvv vyce vyde vyed vyer vyre yccc ycee ydee ydre yedd yede yeed yeer yerd yere yerr yery yeve yeye yeyr yver yyyy