-ene cccc cccf ccee ccfc ccff ccnc ccne ccnf ccnr ccrc ccre ccrf ccrt cctc cctt cec- cece cect ceec cef- cefc cefn cen- cene cent cer- cerc cere cerf cern cert cet- cete cfcf cfcn cffr cfnr cfre cfrn cfrt cftc cfte cftr cnet cnrc cnrr cnrt cntc cntf cntr crcc crce crcr cre- crec cree cren cret crfc crne crrt crtc crtf ctcf ctec cten ctfc ctne ctrc ctrn cttn eccc ecce ecct ecef ecfc ecfr ecne ecrc ecrf ecrr ect- ectc ectf eeee eefe eefn eent eerc eetc eete efen efet eft- ence enee ener ennc enne ent- ente entr ercc erce erec eren erer eret erfc erft erne errc erre etcc etec etee eten eter etfc etfe etne etnr etre ette ettn fccf fece fect feen feer feet fefc fefe feff fene fenn fent ferc fere fern ferr fert fete fetr fett ffcc ffee ffff ffrr fftf fnet frcc frcn free fren fret frfc ft-c ften fter ftfc nccc nccf nccn nccr ncct ncec ncee ncef ncen ncer ncfc ncfe ncnc ncrc ncre nctc ncte nctr necc nece necr nect neef neen neer neet nefe neff nene nent nerc nere nerf nerr nert net- nete nett nfct nfer nfff nftc nnnn nntn nren nrfc nrrc ntcc nter ntfc ntrc nttr rccc rcet rcfc rcnr rctc recc rece recr rect reef reen reet refe reff refn refr reft rene renn rent rere rert rete retr rett rfef rffc rftc rnnt rrfc rrrr rtcc rtce rtee rtfc tccc tcfc tcnn tctc tecr tect teec teef teen teer teet tefc teff teft tenc tene tenn tent ter- terc tere terf tern terr tete tetr tett tfec tftc tncc tnef tnfc trcc tre- trec tree tref tren tret trfc trfr trtc trte trtr ttcn tten tter ttfc ttff ttfn tttt