-ene c-cd cccc cccp cccs ccdc ccdn ccdp ccdr ccds cced ccee ccnc ccne ccnp ccnr ccns ccpe ccpn ccpp ccpr ccps ccrc ccre ccrp ccrs ccsd ccsn ccsp ccss cd-e cd-r cdcs cddr cdec cder cdes cdnc cdps cdre cdrs cdss cec- cece cecp cecs cedd cede ceec cees cen- cend cene cens cepc cepe cepp cepr ceps cer- cerc cerd cere cern cerp cers cesc cese cesp cesr cess cncp cndd cndp cnep cnes cnrc cnrr cnss cpce cpcs cpep cper cpns cppd cpps cpre cprs cpsc cpsr crcc crce crcr crdc cre- crec cred cree cren crep cres crne crns crpc crps crsp crss cscc cscd csce cscr cscs csdn csdp csdr csec csee csep cser csne csnp cspc cspd cspe csps csrc csrd csrs cssd csse cssr dccc dccp dccs dcds dcns dcps dcsc dcss dddd ddes ddps ddrc ddre ddss dec- decc decd dece decs dedd dede deed deen deep deer dees dene denn dens depc depe depp depr deps der- derc dere dern derp derr ders des- desc dese desp dess dnce dncs dner dnrc dnsc dpcp dper dppc dpsd dred dree dren dres drrs drsp dscc dscn dscp dscr dscs dsdp dsdr dsps dsrc dsrp dsrr dssc dssn dssp eccc ecce ecdc eced eces ecne ecpd ecpp ecrc ecrr ecsc ecse ecsp ecss eddc edde eddp edds ede- eden eder edes edns edrn edss eecs eede eeee eees eend eens eeps eerc eers eese ence encs end- ende ends ened enee ener enes ennc enne enns enp- enrs ense epcc epec epee epen eper epes epns eppc eppp epps eprp eprs epsc epsd epsp epss ercc erce ercp erde erds erec ered eren erer eres erne erns erpe erps errc erre errs erse esce escr escs esdp esds esee esen eser eses esne espc espe espn espp esps esrd esse essp nccc nccn nccp nccr nccs ncdc ncdn ncdr ncds ncec nced ncee ncen ncep ncer nces ncnc ncnd ncpc ncrc ncre ncrp ncsc ncse ncss ndcc ndcp ndcs ndde nder ndnp ndpd ndpr ndps ndrc ndre ndss necc nece necr necs nedc nedd nede neds need neen neep neer nees nend nene nens nepc nepe nepr neps nerc nerd nere nerr ners nesc nese nesn nesr ness nnes nnnn nnpr nnss npcc npes nppc nppd npss nrcs nrdc nrds nren nrpc nrpn nrps nrrc nrrd nrsc nrsp nscc nscd nscs nsds nsec nsep nser nsnr nspc nsps nsrc nsrd nssc nsse nssp nssr nsss pccc pcce pccs pcep pcer pcns pcpn pcpp pcps pcrc pcrd pcre pcse pdcp pdes pdns pdpn pdpr pdrc pdrs pdsd pdss pece pecr pecs ped- pede peds peec peed peen peep peer pees pen- penc pend pene penn pens pepd pepe peps per- perc perd pere pern perp perr pers pese pess pnec pnes pnpp pnsc ppcc ppcd ppcs ppds ppen pper pppd pppn pppp ppps pprc ppss prcc prcd prcp prcs pre- prec pred pree pren prep pres prnd prnp prpd prps prrd prrs prsc prsd prse prss psdc psdp psdr psds psec psnc psnr pspp pspr psps psrd psrp pssc psse rccc rccs rcdc rcde rcds rcep rcnr rcpd rcps rcrd rcsc rcsd rcss rder rdpc recc recd rece recp recr recs redc redd rede redr reds reed reen reep rees rend rene renn rens repe repp repr reps rerd rere rers rese resn resp ress rncp rncs rndc rndp rnds rnsp rpcs rpdp rppn rpps rred rrrr rrsp rscc rscn rscs rsdd rsds rsee rsnn rsnr rsps rsre sccc scce sccp sccs scdc scdp scds scec scee scep scer scnd scnr scpe scps scr- scrc scre scrn scrs scsc scsd scsn scsr sdcc sddc sdds sdep sder sdes sdpr sdps sdrc sdrs sdsc sdss se-c se-d se-e se-n se-s sec- secc secd sece secn secr secs sede seds seec seed seen seep seer sees send sene senn senr sens sepd sepe sepn sepp sepr seps serc serd sere sern serp serr sers sesc sese sess sncc sncp sned snee snep sner snes snns snpp snrs snsd spcc spcs spdc spde spdp spdr spec sped spee spen sper spes spne spns sppd spps sprd sprs spsd spse spsp spss srcc srde srec sres srnn srpc srps srsd srsp sscc ssce sscp sscs ssdc ssdd ssdp ssec ssee ssep sses ssns sspc sspe ssps ssrc ssrs sssc ssss