c-cd cccc cccu ccdc ccdr cced ccee ccoc ccod ccrc ccre ccuc cd-e cd-r cddr cdec cder cdre cec- cece ceco cedd cede cedo cedu ceec ceor ceou cer- cerc cerd cere cero coce coco cocu codd code coed cood cor- corc cord core coro corr coud coue cour crcc crce crcr crdc cre- crec cred cree creo creu croc crod croe croo cror crud crue cucc cuce cude cued cuer curd cure curo curr dccc dccu dddd ddoc ddrc ddre dec- decc decd dece deco dedd dede dedo dedu deed deer deor der- derc dere dero derr deue deur doce doco docu dod- dodd dode dodo doer dood door dorc dord dore doro dorr doru douc doud doue dour dred dree drod drou drue druu duce duco dudd dude dudo dudu duer duo- dure duro duru duur eccc ecce ecco ecdc eced eco- ecod ecou ecrc ecrr ecru eddc edde eddo ede- eder edoc edod edou edru educ edur eede eedu eeee eeoc eerc eero eocd eode eore ercc erce erde erec ered erer eroc erod eroe eroo errc erre erro eruc erur eucd eude euer eur- eurc eure euro o-eo occc oce oced ocee ocre ocro ocrr ocur oddd oded odeo oder odoo odor odou odur oec- oecc oedo oeec oere oocr ooer oooo oord oore orce orco orde ordo ordu ore- orec ored oreo orer oro- oroe oror orro oucc oudc oude oued ouer our- oure ouro ouu- rccc rcdc rcde rcrd rder rdoc recc recd rece recr recu redc redd rede redo redr redu reed reod reou rerd rere rero reru reue reuu rocc roce roco rodd rode rodo roed roer rood roor rorc rore roro roru roud roue rred rrrr ruce rudd rude rudo rued ruer rurc rurd rure ruro ruru ruud ucdc ucdd ucrc uder udoo uocc uor- uore urde urdu ure- ured uro- uroo urre urur uuoc uuuu