c-cd cccc cccv ccdc ccdr cced ccee ccoc ccod ccrc ccre ccvo cd-e cd-r cddr cdec cder cdre cdvd cec- cece ceco cedd cede cedo ceec ceor cer- cerc cerd cere cero cevo coce coco codd code coed cood cor- corc cord core coro corr cove covo crcc crce crcr crdc cre- crec cred cree creo croc crod croe croo cror cvcc cver cvrd cvrr dccc dccv dcvd dddd ddoc ddrc ddre dec- decc decd dece deco dedd dede dedo deed deer deev deor der- derc dere dero derr derv deve devo doce doco dod- dodd dode dodo doer dood door dorc dord dore doro dorr dove dred dree drev drod dvdr dvor eccc ecce ecco ecdc eced eco- ecod ecrc ecrr ecrv eddc edde eddo ede- eder edoc edod edve eede eeee eeoc eerc eero eocd eode eore ercc erce erde erec ered erer erev eroc erod eroe eroo errc erre erro erve ever evoe evoo evre o-eo occc oce oced ocee ocre ocro ocrr oddd oded odeo oder odoo odor oec- oecc oedo oeec oere oocr ooer oooo oord oore orce orco orde ordo ore- orec ored oreo orer oro- oroe oror orro orve orvr ovde ovee over ovo- ovod ovoo ovre rccc rcdc rcde rcrd rcvr rder rdev rdoc recc recd rece recr redc redd rede redo redr reed reev reod rerd rere rero revd reve revo rocc roce roco rodd rode rodo roed roer roev rood roor rorc rore roro rove rovo rred rrrr rv-c rved rver vdcc vdec vder vdre vecc vedc vede vedo veer veor ver- verd vere vero veve vevo voce vode vodo voer vooc voor vor- vord vore voro vred vreo vroc vver vvvv