c-cd cccc cccp cccu ccdc ccdp ccdr cced ccee ccoc ccod ccpe ccpp ccpr ccrc ccre ccrp ccuc ccup cd-e cd-r cddr cdec cder cdre cec- cece ceco cecp cedd cede cedo cedu ceec ceop ceor ceou cepc cepe cepo cepp cepr cer- cerc cerd cere cero cerp coce coco cocp cocu codd code coed coep cood coop copd cope copo copp copr cor- corc cord core coro corp corr coud coue coup cour cpce cpcu cpep cper cppd cpre crcc crce crcr crdc cre- crec cred cree creo crep creu croc crod croe croo crop cror crpc crud crue crup cucc cuce cude cued cuer cupe cupo cupp cupr curd cure curo curr dccc dccp dccu dcop dcpo dcup dddd ddoc ddpo ddrc ddre dec- decc decd dece deco dedd dede dedo dedu deed deep deer deop deor depc depe depo depp depr der- derc dere dero derp derr deue deur doce doco docu dod- dodd dode dodo doer dood doop door dope dopo dopp dopr dorc dord dore doro dorp dorr doru douc doud doue doup dour dpcp dper dppc dred dree drod drop drou drue drup druu duce duco dudd dude dudo dudu duer duo- dupe dupo dure duro duru duur eccc ecce ecco ecdc eced eco- ecod ecop ecou ecpd ecpp ecrc ecrr ecru eddc edde eddo eddp ede- eder edoc edod edou edru educ edup edur eede eedu eeee eeoc eerc eero eocd eode eore epcc epec epee eper epoc epod epor eppc eppo eppp epro eprp ercc erce ercp erde erec ered erer eroc erod eroe eroo erpe errc erre erro eruc erur eucd eude euer eur- eurc eure euro o-eo occc oce oced ocee ocpd ocpp ocre ocro ocrr ocur oddd oded odeo oder odoo odop odor odou odrp odur oec- oecc oedo oeec oere oocr ooer oooo oord oore opec oped opep oper opo- opor oppo orce orco orde ordo ordu ore- orec ored oreo orer oro- oroe oror orpc orpe orro orup oucc oudc oude oued ouer oupe our- oure ouro ouu- pccc pcce pcep pcer pcod pcoe pcpp pcrc pcrd pcre pdcp pdoc pdpr pdrc pece peco pecr ped- pede pedo peec peed peep peer peor peou pepd pepe pepo per- perc perd pere pero perp perr peru peur pocd poce poco pod- podd pode podo podu poed poer pood poop poor pop- popc pope popo popp porc pore poro porr poud poup pour ppcc ppcd pper ppod pppd pppo pppp pprc ppru ppur prcc prcd prcp pre- prec pred pree prep preu pro- proc prod proe proo prop prou prpd prrd prud prue pruu pu-e puce pudo pudu pued pueo puer pueu pupe pupu pur- pure puro purp purr puru puuc rccc rcdc rcde rcep rcpd rcpo rcrd rder rdoc rdpc recc recd rece recp recr recu redc redd rede redo redr redu reed reep reod reop reou repe repo repp repr repu rerd rere rero reru reue reup reuu rocc roce roco rodd rode rodo roed roer rood roop roor rope ropo rorc rore roro roru roud roue roup rpdp rpoe rred rrrr ruce rudd rude rudo rudp rued ruer rupe rupp rurc rurd rure ruro rurp ruru ruud u-rp uccp ucdc ucdd ucrc uder udoo udop udpd uocc uor- uore updo uped upor uppc uppe uppp uppu upup urde urdu ure- ured uro- uroo urpo urre urup urur uucp uuoc uuuu