-ene cccc cccp cccs ccee ccnc ccne ccnp ccns ccpe ccpn ccpp ccps ccsn ccsp ccss ccst cctc cctt cec- cece cecp cecs cect ceec cees cen- cene cens cent cepc cepe cepp ceps cept cesc cese cesp cess cest cet- cete cetp cets cncp cnep cnes cnet cnss cntc cpce cpcs cpep cpns cpnt cpps cpsc cptp cpts cscc csce cscs csec csee csep cset csne csnp cspc cspe csps cspt csse cstc csts ctcp ctec cten ctep ctne ctns ctpp ctps ctsc ctsn ctss cttn ctts eccc ecce ecct eces ecne ecpp ecsc ecse ecsp ecss ect- ectc ects eecs eeee eees eens eent eeps eese eetc eete eets ence encs enee enes ennc enne enns enp- ense enst ent- ente entp ents epcc epec epee epen epes epns eppc eppp epps epsc epsp epss epte esce escs esee esen eses eset esne espc espe espn espp esps esse essp esst estc este estp ests etcc etcs etec etee eten etes etne etns ette ettn nccc nccn nccp nccs ncct ncec ncee ncen ncep nces ncnc ncpc ncsc ncse ncss ncst nctc ncte necc nece necs nect neen neep nees neet nene nens nent nepc nepe neps nept nesc nese nesn ness nest net- nete nets nett nnes nnnn nnss nntn npcc npes nppc npss nptc npte nptn nscc nscs nsec nsep nspc nsps nssc nsse nssp nsss nstc nstp nsts ntcc ntes ntpc ntsc ntss pccc pcce pccs pcep pcns pcnt pcpn pcpp pcps pcse pcte pcts pece pecs pect peec peen peep pees peet pen- penc pene penn pens pent pepe peps pese pess pest pete petn pets pett pnec pnes pnet pnpp pnsc ppcc ppcs ppen pppn pppp ppps ppss pptn ppts pptt psec psnc pspp psps pssc psse psst psts ptcc pten pttc sccc scce sccp sccs scct scec scee scep scet scnt scpe scps scpt scsc scsn scst sctc sctn scts se-c se-e se-n se-s se-t sec- secc sece secn secs sect seec seen seep sees seet sene senn sens sent sepe sepn sepp seps sept sesc sese sess sest set- setc sete sets sett sncc sncp snee snep snes snet snns snpp snte spcc spcs spec spee spen spes spet spne spns spps spse spsp spss spst sptc spts sscc ssce sscp sscs ssec ssee ssep sses sset ssns sspc sspe ssps sspt sssc ssss sstc sstp ssts stcc stcp stcs stec stee sten step stes stet stnn stns stpp stps stss sttc tccc tcep tcnn tctc tcts tecs tect teec teen tees teet tenc tene tenn tenp tens tent tepe tepp tesc tese tesp tess test tete tets tett tncc tnes tnsp tnts tpcp tpcs tppp tpsc tpte tptp tscc tscp tsec tsen tses tset tspn tsps tspt tsse tsst tstc tsts ttcn ttcp tten ttss tttt