c-cd cccc cccu ccdc ccdr cced ccee ccoc ccod ccrc ccre ccrt cctc cctt ccuc ccut cd-e cd-r cddr cdec cder cdot cdre cec- cece ceco cect cedd cede cedo cedt cedu ceec ceor ceou cer- cerc cerd cere cero cert cet- cete ceto coce coco coct cocu codd code coed cood coot cor- corc cord core coro corr cort cotc cote coto cott cotu coud coue cour cout crcc crce crcr crdc cre- crec cred cree creo cret creu croc crod croe croo cror crot crrt crtc crud crue crut ctec ctor ctot ctrc cucc cuce cude cued cuer curd cure curo curr curt cut- cutc cute cuto cutt dccc dcct dccu dctc dddd ddoc ddot ddrc ddre dec- decc decd dece deco dect dedd dede dedo dedu deed deer deet deor der- derc dere dero derr dete deto detr deue deur deut doce doco doct docu dod- dodd dode dodo doer dood door doot dorc dord dore doro dorr dort doru dotd dote doto dott douc doud doue dour dout dred dree dret drod drot drou drue drut druu dtcc dted dtor dtot duce duco duct dudd dude dudo dudu duer duet duo- dure duro durt duru dute duur duut eccc ecce ecco ecct ecdc eced eco- ecod ecot ecou ecrc ecrr ecru ect- ectc ecto eddc edde eddo ede- eder edoc edod edou edru educ edur eede eedu eeee eeoc eerc eero eetc eete eetu eocd eode eore eotc eotd eoto ercc erce erde erec ered erer eret eroc erod eroe eroo errc erre erro ertu eruc erur etcc etco etec etee eter etoe etre etro ette etto ettu eucd eude euer eur- eurc eure euro eurt o-eo occc occt oce oced ocee ocet ocre ocro ocrr oct- octe octo ocur oddd oded odeo oder odet odoo odor odot odou odtu odur oec- oecc oedo oeec oere oocr ooer oooo oord oore oort orce orco orde ordo ordu ore- orec ored oreo orer oro- oroe oror orot orro ortc orte orto otcd oted otee oter oto- otoe otoo otor otre otro otte otto ottu otur oucc oudc oude oued ouer our- oure ouro ourt out- oute outo ouu- rccc rcdc rcde rcet rcrd rctc rder rdoc recc recd rece recr rect recu redc redd rede redo redr redu reed reet reod reot reou rerd rere rero rert reru retd rete reto retr rett reue reut reuu rocc roce roco rodd rode rodo roed roer roet rood roor root rorc rore roro rort roru rotc rote roto rotr rott roud roue rout rred rrrr rtcc rtce rtdt rtee ruce ruct rudd rude rudo rued ruer ruet rurc rurd rure ruro ruru rute ruto rutt rutu ruud tccc tccu tcdd tctc tdor teco tecr tect tedd tede teec teed teer teet teor ter- terc tere tero terr teru tete teto tetr tett tetu teut toce toco todd tode todo todt todu toed toee toer toet tood toor toot torc tord tore toro torr tort toru totc totd tote toto totr tott tour tout trcc tre- trec tred tree treo tret treu troc trod troe troo trot trou trtc trte trtr truc trud true trut truu tteo tter ttoe tttt tucc tuco tude tudu tuer tuet tuor turc turd ture turo turr turt turu tute tuto tutt tutu tuuo ucdc ucdd ucrc ucut uder udet udoo udot uocc uor- uore urde urdu ure- ured uret uro- uroo urre urte urur urut utec uter utor utto uttu uuoc uuuu