c-cd cccc cccf cccu ccdc ccdf ccdr cced ccee ccfc ccfd ccff ccoc ccod ccrc ccre ccrf ccrt cctc cctt ccuc ccut cd-e cd-r cddr cdec cdef cder cdfe cdot cdre cec- cece ceco cect cedd cede cedo cedt cedu ceec cef- cefc ceor ceou cer- cerc cerd cere cerf cero cert cet- cete ceto cfcf cfco cffr cfor cfre cfrt cftc cfte cftr coce coco coct cocu codd code coed cofc cofe coff coft cood coof coot cor- corc cord core corf coro corr cort cotc cote coto cott cotu coud coue cour cout crcc crce crcr crdc cre- crec cred cree creo cret creu crfc croc crod croe croo cror crot crrt crtc crtf crud crue crut ctcf ctec ctfc ctfo ctor ctot ctrc cucc cuce cude cued cuer cufc cuff cufo curd cure curf curo curr curt cut- cutc cute cuto cutt dccc dcct dccu dcfc dctc dddd ddoc ddot ddrc ddre dec- decc decd dece deco dect dedd dede dedo dedu deed deef deer deet defe deff defo deft deor der- derc dere derf dero derr dete deto detr deue deur deut dfcc dfco dfcu dfdt dfer dfoe dfrf dftr doce doco doct docu dod- dodd dode dodo doer doff dood doof door doot dorc dord dore dorf doro dorr dort doru dotd dote doto dott douc doud doue douf dour dout dred dree dref dret drfc drod drof drot drou drue drut druu dtcc dted dtfc dtor dtot duce duco duct dudd dude dudo dudu duer duet dufc duff dufu duo- dure duro durt duru dute duur duut eccc ecce ecco ecct ecdc ecdf eced ecef ecfc ecfr eco- ecod ecot ecou ecrc ecrf ecrr ecru ect- ectc ectf ecto eddc edde eddo ede- eder edfu edoc edod edou edru educ edur eede eedu eeee eefe eeoc eerc eero eetc eete eetu efco efeo efet efor eft- eftu eocd eode eore eotc eotd eoto ercc erce erde erdf erec ered erer eret erfc erft eroc erod eroe eroo errc erre erro ertu eruc erur etcc etco etec etee eter etfc etfe etoe etre etro ette etto ettu eucd eude euer eufc eur- eurc eure euro eurt fccf fcot fcto fdoc fdot fdtc fece fect fede feed feer feet fefc fefe feff fefo feod feof ferc ferd fere fero ferr fert feru fete fetr fett fetu feud ffcc ffee ffff ffrr fftf foce foco fode foed foer fofo food foof foot for- ford fore foro forr fort fote foto fott foud four fout frcc fred free freo fret frfc froe frot frou frue ft-c ftcd fter ftfc ftuc fuc- fuct fudd fude fuet fufc fuff fufu fuor fur- fure furo furr furt fute futo futu o-eo occc occt oce oced ocee ocef ocet ocre ocro ocrr oct- octe octo ocur oddd oded odeo oder odet odoo odor odot odou odtu odur oec- oecc oedo oeec oere oeuf ofcr ofdr ofer off- offc offe offo offr offu ofor ofre oocr ooer ooff oooo oord oore oort orce orco orde ordo ordu ore- orec ored oreo orer orfe orff orfu oro- oroe orof oror orot orro ortc orte orto otcd oted otee oter otfc oto- otoe otof otoo otor otre otro otte otto ottu otur oucc oudc oude oued ouer oufc oufe ouff our- oure ouro ourt out- oute outo ouu- rccc rcdc rcde rcet rcfc rcrd rctc rder rdoc recc recd rece recr rect recu redc redd rede redo redr redu reed reef reet refd refe reff refr reft refu reod reof reot reou rerd rere rero rert reru retd rete reto retr rett reue reuf reut reuu rfef rffc rftc rocc roce roco rodd rode rodo roed roer roet rofc rofe roff rofo rood roof roor root rorc rore roro rort roru rotc rote roto rotr rott roud roue rouf rout rred rrfc rrrr rtcc rtce rtdt rtee rtfc ruce ruct rudd rude rudo rued ruer ruet rufc rufe ruff rufo ruft rurc rurd rure ruro ruru rute ruto rutt rutu ruud tccc tccu tcdd tcfc tctc tdff tdor teco tecr tect tedd tede teec teed teef teer teet tefc teff teft teor ter- terc tere terf tero terr teru tete teto tetr tett tetu teut tfcu tfdc tfec tfot tftc toce toco todd tode todo todt todu toed toee toer toet toff tofo toft tofu tood toof toor toot torc tord tore torf toro torr tort toru totc totd tote toto totr tott tour tout trcc tre- trec tred tree tref treo tret treu trfc trfd trfr troc trod troe troo trot trou trtc trte trtr truc trud true trut truu tteo tter ttfc ttff ttoe tttt tucc tuco tude tudu tuer tuet tufc tufe tuff tufo tuft tufu tuor turc turd ture turf turo turr turt turu tute tuto tutt tutu tuuo ucdc ucdd ucrc ucut uder udet udoo udot ufcu ufer uffe uocc uofo uor- uore urde urdu ure- ured uret urfe urff urft uro- uroo urre urte urur urut utec uter utfo utor utto uttu uuoc uutf uuuu