-ene c-cd cccc cccp ccdc ccdn ccdp ccdr cced ccee ccnc ccne ccnp ccnr ccpe ccpn ccpp ccpr ccrc ccre ccrp cd-e cd-r cddr cdec cder cdnc cdre cec- cece cecp cedd cede ceec cen- cend cene cepc cepe cepp cepr cer- cerc cerd cere cern cerp cncp cndd cndp cnep cnrc cnrr cpce cpep cper cppd cpre crcc crce crcr crdc cre- crec cred cree cren crep crne crpc dccc dccp dddd ddrc ddre dec- decc decd dece dedd dede deed deen deep deer dene denn depc depe depp depr der- derc dere dern derp derr dnce dner dnrc dpcp dper dppc dred dree dren eccc ecce ecdc eced ecne ecpd ecpp ecrc ecrr eddc edde eddp ede- eden eder edrn eede eeee eend eerc ence end- ende ened enee ener ennc enne enp- epcc epec epee epen eper eppc eppp eprp ercc erce ercp erde erec ered eren erer erne erpe errc erre nccc nccn nccp nccr ncdc ncdn ncdr ncec nced ncee ncen ncep ncer ncnc ncnd ncpc ncrc ncre ncrp ndcc ndcp ndde nder ndnp ndpd ndpr ndrc ndre necc nece necr nedc nedd nede need neen neep neer nend nene nepc nepe nepr nerc nerd nere nerr nnnn nnpr npcc nppc nppd nrdc nren nrpc nrpn nrrc nrrd pccc pcce pcep pcer pcpn pcpp pcrc pcrd pcre pdcp pdpn pdpr pdrc pece pecr ped- pede peec peed peen peep peer pen- penc pend pene penn pepd pepe per- perc perd pere pern perp perr pnec pnpp ppcc ppcd ppen pper pppd pppn pppp pprc prcc prcd prcp pre- prec pred pree pren prep prnd prnp prpd prrd rccc rcdc rcde rcep rcnr rcpd rcrd rder rdpc recc recd rece recp recr redc redd rede redr reed reen reep rend rene renn repe repp repr rerd rere rncp rndc rndp rpdp rppn rred rrrr