c-cd cccc cccv ccdc ccdr cced ccee ccoc ccod ccrc ccre ccrt cctc cctt cctv ccvo cd-e cd-r cddr cdec cder cdot cdre cdtv cdvd cec- cece ceco cect cedd cede cedo cedt ceec ceor cer- cerc cerd cere cero cert cet- cete ceto cetv cevo coce coco coct codd code coed cood coot cor- corc cord core coro corr cort cotc cote coto cott cove covo crcc crce crcr crdc cre- crec cred cree creo cret croc crod croe croo cror crot crrt crtc crtv ctec ctor ctot ctrc ctvo ctvt cvcc cver cvet cvrd cvrr cvte d-tv dccc dcct dccv dctc dctv dcvd dddd ddoc ddot ddrc ddre ddtv dec- decc decd dece deco dect dedd dede dedo deed deer deet deev deor der- derc dere dero derr derv dete deto detr deve devo doce doco doct dod- dodd dode dodo doer dood door doot dorc dord dore doro dorr dort dotd dote doto dott dove dred dree dret drev drod drot dtcc dted dtor dtot dvdr dvor eccc ecce ecco ecct ecdc eced eco- ecod ecot ecrc ecrr ecrv ect- ectc ecto ectv eddc edde eddo ede- eder edoc edod edtv edve eede eeee eeoc eerc eero eetc eete eocd eode eore eotc eotd eoto ercc erce erde erec ered erer eret erev eroc erod eroe eroo errc erre erro erve etcc etco etec etee eter etoe etre etro ette etto etvo ever evet evoe evoo evre o-eo occc occt oce oced ocee ocet ocre ocro ocrr oct- octe octo oddd oded odeo oder odet odoo odor odot oec- oecc oedo oeec oere oocr ooer oooo oord oore oort orce orco orde ordo ore- orec ored oreo orer oro- oroe oror orot orro ortc orte orto orve orvr otcd oted otee oter oto- otoe otoo otor otov otre otro otte otto ovde ovee over ovet ovo- ovod ovoo ovot ovre rccc rcdc rcde rcet rcrd rctc rctv rcvr rder rdev rdoc recc recd rece recr rect redc redd rede redo redr reed reet reev reod reot rerd rere rero rert retd rete reto retr rett revd reve revo rocc roce roco rodd rode rodo roed roer roet roev rood roor root rorc rore roro rort rotc rote roto rotr rott rove rovo rred rrrr rtcc rtce rtdt rtee rtve rv-c rved rver tccc tcdd tcov tctc tdor tdtv teco tecr tect tedd tede teec teed teer teet teev teor ter- terc tere tero terr tete teto tetr tett toce toco todd tode todo todt toed toee toer toet tood toor toot torc tord tore toro torr tort torv totc totd tote toto totr tott tove tovo trcc tre- trec tred tree treo tret trev troc trod troe troo trot trtc trte trtr tteo tter ttoe tttt tver tvro tvrr tvtv vdcc vdec vder vdot vdre vecc vedc vede vedo veer veet veor ver- verd vere vero vert vete veto vetr veve vevo voce vode vodo voer voet vooc voor voot vor- vord vore voro vort votd vote voto vred vreo vret vroc vrot vrto vtec vver vvvv