-ene cccc cccf cccl cccs ccee ccel ccfc ccff ccfl cclc ccls ccnc ccne ccnf ccnr ccns ccrc ccre ccrf ccrl ccrs ccsf ccsl ccsn ccss cec- cece cecs ceec ceel cees cef- cefc cefn cel- celc cele celf cell cels cen- cene cens cer- cerc cere cerf cerl cern cers cesc cese cesr cess cfcf cfcl cfcn cfcs cffr cfln cfls cfnr cfns cfre cfrn cfse cfsl clec clee clef cler cles clrs clsc cnel cnes cnrc cnrr cnsl cnss crcc crce crcr cre- crec cree cren cres crfc crfl crfs crlf crls crne crns crss cscc csce cscf cscl cscr cscs csec csee cser csfc csfr cslr csne csrc csrs csse cssr e-cl eccc ecce eccl ecef eces ecfc ecfr ecfs ecne ecrc ecrf ecrl ecrr ecsc ecse ecss eecs eeee eees eefe eefl eefn eele eels eens eerc eers eese efen efes effs elce elec elee elef elen eler eles elfc elfe elfs elle ells elne else ence encl encs enee enel ener enes enls ennc enne enns enrs ense ercc erce erec erel eren erer eres erfc erfs erle erll erne erns errc erre errs erse esce escr escs esee esel esen eser eses esfs esne esse essl fccf fces fcnl fcsc fcsl fece feel feen feer fees fefc fefe feff fele felf fell fels fene fenn fens ferc fere fern ferr fers fese fess ffcc ffee ffff ffrr ffss flcl flee flen fler fles flnc fnlc fnrs frcc frcn free fren fres frfc frns frsc fscc fsec fsln fssc fssf lccc lcce lccs lcer lces lcfc lcfr lcls lcrl lcrs lcsc lcsr lece leef leel leen leer lees lefe leff lele lell lene lenn lens lerc lere lern lese less lfcc llcc llcs llef lles lllc llll lncr lner lnes lnfs lrcs lrfc lrne lrrc lrrr lrse ls-r lscs lses lsfc lsrc lssr nccc nccf nccn nccr nccs ncec ncee ncef ncel ncen ncer nces ncfc ncfe nclc ncln nclr ncnc ncrc ncre ncsc ncse ncsf ncsl ncss necc nece necr necs neef neel neen neer nees nefe neff nefl nefs nelc nele nelf nell nels nene nens nerc nere nerf nerl nerr ners nesc nese nesl nesn nesr ness nfer nfff nfrs nfsr nlcc nlcf nlcs nlec nler nlls nlsc nnes nnls nnnn nnsl nnss nrcs nren nrfc nrrc nrrl nrsc nscc nscl nscs nsec nsel nser nsfc nsfs nslr nsls nsnr nsrc nsrl nssc nsse nssf nssr nsss rccc rccs rcfc rcle rcls rcnl rcnr rcsc rcsl rcss recc rece recr recs reef reel reen rees refe reff refl refn refr refs rele rell rels rene renn rens rere rers rese resn ress rfef rffc rffl rlcs rlee rlef rlls rncs rrfc rrle rrrr rscc rscn rscs rsee rsfc rslc rsnn rsnr rsre rssl sccc scce sccl sccs scec scee scel scer scfc scfe scl- sclc scls scnr scr- scrc scre scrn scrs scsc scsl scsn scsr se-c se-e se-f se-n se-s sec- secc sece secn secr secs seec seef seel seen seer sees seff sefl sele self sell sels sene senn senr sens serc sere serf sern serr sers sesc sese sess sfcc sfcs sfer sffc sflc sfls sfne sfrc sfss slcc slee sler sles slln slrc slre slrn slrs slsc sncc sncf snee snel sner snes snlf snns snrs srcc srec sres srfc srnn sscc ssce sscs ssec ssee sses ssfc ssfl sslc ssle ssns ssrc ssrl ssrs sssc sssf ssss