-ene -one cccc cccf cccl ccee ccel ccfc ccff ccfl cclc cclx ccnc ccne ccnf ccnr ccoc ccrc ccre ccrf ccrl ccxl cec- cece ceco ceec ceel cef- cefc cefn cel- celc cele celf cell celo cen- cene ceno ceol ceor cer- cerc cere cerf cerl cern cero cexe cfcf cfcl cfcn cfco cffr cfln cfnr cfor cfox cfre cfrn cfrx clec clee clef cleo cler cloe clof clon cloo clor clox clro clxx cnco cnel cnex cnrc cnrr coce coco coel coen coex cofc cofe coff col- cole coll coln colo con- conc cone conf conn cono coof cool coon cor- corc core corf corl corn coro corr coxe crcc crce crcr cre- crec cree cren creo crex crfc crfl crlf crne croc croe crol cron croo cror cxro cxxx e-cl eccc ecce eccl ecco ecef ecfc ecfr ecne eco- ecol econ ecrc ecrf ecrl ecrr eeee eefe eefl eefn eele eeoc eerc eero efco efen efeo efon efor elce elco elec elee elef elen eleo eler elex elfc elfe elle ello elne elon elro ence encl enco enee enel eneo ener ennc enne eno- enoc enoe enol enon eole eolo eone eore eorl er-x ercc erce erec erel eren erer erfc erfx erle erll erne erno eroc eroe erol eron eroo errc erre erro excl exco exec exel exen exer exfo exo- exon exor exrx fccf fcnl fece feel feen feer fefc fefe feff fefo fele felf fell felo fene fenn feof feon ferc fere fern fero ferr ffcc ffee ffff ffrr flcl flee flen fler flex flnc floc floe flon floo flor flox fnlc foce foco foer fofo folc fole foll folo folr folx fone fono foof fool foon for- fore forl forn foro forr foxe foxx frcc frcn free fren freo frex frfc froe frol fron lccc lcce lcer lcfc lcfr lcor lcrl lece leco leef leel leen leer lefe leff lele lell lelo lene lenn leno leoc leof leon leor leox lerc lere lern lero lexx lfcc llcc llef lllc llll lloc lloo lncr lner locc loce locn loco loen lofe loff lofn lole loll lolo lone lono lonr looc looe loof lool loon loor lore lorn loro lox- loxo lrfc lrne lroc lron lrrc lrrr lxxx nccc nccf nccn nccr ncec ncee ncef ncel ncen ncer ncfc ncfe nclc ncln nclr ncnc ncoc ncor ncrc ncre necc nece neco necr neef neel neen neer nefe neff nefl nelc nele nelf nell nelo nene neno neo- neoc neol neon neoo neox nerc nere nerf nerl nero nerr nexe nexo nexx nfer nfff nfon nlcc nlcf nlec nler nnnn noce nocl noco noel noer nofx nole nolf noll nolo non- none nonn nono nonx noo- nool noon nooo noor nor- norc nore norf norn noro norr nren nrfc nroc nron nrrc nrrl o-eo occc occn oce ocee ocef oclc ocon ocre ocrl ocro ocrr oec- oecc oeec oele oen- oeno oere ofcl ofcr ofen ofer off- offc offe offo offr ofno ofor ofre olcc ole- olef olen oleo oler olfe olle ollo olne olof olon olor onc- once oncf onco one- onec onee onel oneo oner onex onlf onne onno onon onor oocr ooer ooff oolo oone oooo oore orce orco ore- orec orel oren oreo orer orex orfe orff orle orlo ornc orne orno oro- oroe orof oron oror orro oxen oxer oxo- oxof oxon oxox oxxo rccc rcfc rcle rcnl rcnr rcon recc rece recr reef reel reen refe reff refl refn refr rele rell relo rene renn reno reof reol rere rero rexx rfef rffc rffl rlee rlef rnco rocc roce roco roel roen roer rofc rofe roff rofl rofo role rolf roll rolo ronc rone rono roof rool roon roor roox rorc rore roro roxo rrfc rrle rrrr xcel xcon xeer xefe xen- xene xenn xeno xeon xer- xero xexe xfce xfer xloc xlox xnee xoco xolo xorn xoro xoxo xxxo xxxx