-ene cccc cccp cccs ccee ccnc ccne ccnp ccnr ccns ccpe ccpn ccpp ccpr ccps ccrc ccre ccrp ccrs ccrt ccsn ccsp ccss ccst cctc cctt cec- cece cecp cecs cect ceec cees cen- cene cens cent cepc cepe cepp cepr ceps cept cer- cerc cere cern cerp cers cert cesc cese cesp cesr cess cest cet- cete cetp cets cncp cnep cnes cnet cnrc cnrr cnrt cnss cntc cntr cpce cpcs cpep cper cpns cpnt cpps cpre cprs cprt cpsc cpsr cptp cptr cpts crcc crce crcr cre- crec cree cren crep cres cret crne crns crpc crps crrt crsp crss crst crtc crtp crts cscc csce cscr cscs csec csee csep cser cset csne csnp cspc cspe csps cspt csrc csrs csse cssr cstc cstr csts ctcp ctec cten ctep ctne ctns ctpp ctps ctrc ctrn ctrp ctrs ctsc ctsn ctss cttn ctts eccc ecce ecct eces ecne ecpp ecrc ecrr ecsc ecse ecsp ecss ect- ectc ects eecs eeee eees eens eent eeps eerc eers eese eetc eete eets ence encs enee ener enes ennc enne enns enp- enrs ense enst ent- ente entp entr ents epcc epec epee epen eper epes epns eppc eppp epps eprp eprs epsc epsp epss epte ercc erce ercp erec eren erer eres eret erne erns erpe erps errc erre errs erse erst erts esce escr escs esee esen eser eses eset esne espc espe espn espp esps esse essp esst estc este estp estr ests etcc etcs etec etee eten eter etes etne etnr etns etre ette ettn nccc nccn nccp nccr nccs ncct ncec ncee ncen ncep ncer nces ncnc ncpc ncrc ncre ncrp ncsc ncse ncss ncst nctc ncte nctr necc nece necr necs nect neen neep neer nees neet nene nens nent nepc nepe nepr neps nept nerc nere nerr ners nert nesc nese nesn nesr ness nest net- nete nets nett nnes nnnn nnpr nnss nntn npcc npes nppc nprt npss nptc npte nptn nrcs nren nrpc nrpn nrps nrrc nrsc nrsp nrts nscc nscs nsec nsep nser nsnr nspc nsps nsrc nssc nsse nssp nssr nsss nstc nstp nsts ntcc nter ntes ntpc ntrc ntsc ntss nttr pccc pcce pccs pcep pcer pcns pcnt pcpn pcpp pcps pcrc pcre pcse pcte pcts pece pecr pecs pect peec peen peep peer pees peet pen- penc pene penn pens pent pepe peps per- perc pere pern perp perr pers pert pese pess pest pete petn petr pets pett pnec pnes pnet pnpp pnsc pntr ppcc ppcs ppen pper pppn pppp ppps pprc ppss pptn ppts pptt prcc prcp prcs pre- prec pree pren prep pres pret prnp prps prrs prsc prse prss prtc prtp prtr psec psnc psnr pspp pspr psps psrp pssc psse psst psts ptcc pten pter pttc rccc rccs rcep rcet rcnr rcps rcpt rcsc rcss rctc rcts recc rece recp recr recs rect reen reep rees reet rene renn rens rent repe repp repr reps rept rere rers rert rese resn resp ress rest rete retr rets rett rncp rncs rnnt rnsp rntp rpcs rpet rppn rpps rptn rpts rrrr rrsp rscc rscn rscs rsee rsnn rsnr rsps rsre rstp rsts rtcc rtce rtee rtes rtns rtps rtss rttp rtts sccc scce sccp sccs scct scec scee scep scer scet scnr scnt scpe scps scpt scr- scrc scre scrn scrs scsc scsn scsr scst sctc sctn sctr scts se-c se-e se-n se-s se-t sec- secc sece secn secr secs sect seec seen seep seer sees seet sene senn senr sens sent sepe sepn sepp sepr seps sept serc sere sern serp serr sers sert sesc sese sess sest set- setc sete sets sett sncc sncp snee snep sner snes snet snns snpp snrs snte sntr spcc spcs spec spee spen sper spes spet spne spns spps sprs spse spsp spss spst sptc sptr spts srcc srct srec sres srnn srpc srps srpt srsp srtp srtr sscc ssce sscp sscs ssec ssee ssep sses sset ssns sspc sspe ssps sspt ssrc ssrs sssc ssss sstc sstp ssts stcc stcp stcs stec stee sten step ster stes stet stnn stnr stns stpp stps strc stre strn strs stss sttc sttr tccc tcep tcnn tctc tcts tecr tecs tect teec teen teer tees teet tenc tene tenn tenp tens tent tepe tepp ter- terc tere tern terp terr ters tesc tese tesp tess test tete tetr tets tett tncc tnes tnsp tnts tpcp tpcs tper tppp tppr tprs tpsc tpte tptp tptr trcc tre- trec tree tren tres tret trpc trpe trpn trpp trps trst trtc trte trtr tscc tscp tsec tsen tses tset tspn tsps tspt tsse tssr tsst tstc tsts ttcn ttcp tten tter ttss tttt