-ene -one bbbb bbeb bbfc bbfn bbrc bcbc bccc bcec bcer bcfc bcnu bcof bcor bcru bcuc bebb bebe bebo becu beeb beef been beer befe beff befo bene benn beno benu beo- beof beon beor berc bere bern bero berr beru beur bner bnoc bnor bnrr bobb bobe bobo bobu boce boco bocu boec boee boef boen boeo boer bofe boff bofu bonc bone bonn bono bonu boob booc booe boof boon boor bor- bore borf born boro borr boru boue bouf boun bour brcb brce breb brec bree bref bren breo brer brfc brfu brno brob broc broe bron broo bror brou brrr bruc brue brun bubb bube bubo bubu bucc buce buco bucu buen buer bueu bufc bufe buff bufo bufr bunb bune bunn buno bunu buon bur- burb bure burn buro burr buru c-bo cbbc cbcc cbce cbcn cbcr cbcu cbec cbee cbef cber cbfb cbfc cbre cbrn ccbc ccbn cccb cccc cccf cccu ccee ccfc ccff ccnb ccnc ccne ccnf ccnr ccnu ccob ccoc ccrc ccre ccrf ccuc cebu cec- cece ceco ceeb ceec cef- cefc cefn cen- cene ceno ceor ceou cer- cerc cere cerf cern cero cfbc cfbn cfbr cfcb cfcf cfcn cfco cffb cffr cfnb cfnr cfor cfrb cfre cfrn cfun cnbc cnco cnrc cnrr cobb cobe cobo cobu coce coco cocu coen cofc cofe coff con- conc cone conf conn cono coob coof coon cor- corb corc core corf corn coro corr coub coue coun cour crbc crbu crcc crce crcr cre- creb crec cree cren creo creu crfc crne crob croc croe cron croo cror crub crue crun cub- cubb cube cucc cuce cucn cuer cufc cuff cufo cune cuno cuon curb cure curf curn curo curr ebbc ebbo ebbr ebcc eben eber ebfc ebno eboe ebon eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecco ecef ecfc ecfr ecne eco- econ ecou ecrc ecrf ecrr ecru eeee eefe eefn eeoc eerc eero efbr efco efen efeo efon efor enb- enbn enbr ence enco enee eneo ener enfb ennc enne ennu eno- enoc enoe enon enue enuf enur eone eore erbb erbe ercc erce ereb erec eren erer erfc erne erno erob eroc eroe eron eroo errc erre erro erub eruc erur eubc euer eufc eur- eurc eure euro fccf febo fece feeb feen feer fefc fefe feff fefo fene fenn feof feon ferb ferc fere fern fero ferr feru ffcc ffee ffff ffrr ffun fnuf foce foco foer fofo fone fono foof foon for- forb fore forn foro forr foun four frbc frcc frcn free fren freo frfc frob froe fron frou frub frue frun fubb fubu fuc- fufc fuff fufu fune funf fuor fur- fure furn furo furr nbbc nbbo nbcc nbco nber nbfc nbuf ncbc nccc nccf nccn nccr nccu ncec ncee ncef ncen ncer ncfc ncfe ncnc ncoc ncor ncrc ncre ncue nebb nebe nebn nebo nebr nebu necc nece neco necr neeb neef neen neer nefe neff nene neno nenu neo- neoc neon neoo nerc nere nerf nero nerr neru neuc neue neuf neun neuo neur neuu nfcu nfer nfff nfon nnnn nobc nobo nobu noce noco noer non- none nonn nono nonu noo- noob noon nooo noor nor- norb norc nore norf norn noro norr noun nour nren nrfc nroc nron nrrc nubc nube nuce nucu nuee nuer nuff nunc nune nunn nuno nuoc nuon nurc nure nurn nurr nuru o-eo obbo obec oben ober oboe obon obor obre obro ocbc occc occn oce ocee ocef ocon ocre ocro ocrr ocur oec- oecc oeec oen- oeno oere oeuf ofcr ofen ofer off- offc offe offo offr offu ofno ofor ofre onc- once oncf onco one- oneb onec onee oneo oner onne onno onon onor onue onur oobe oocr ooer ooff oone oooo oore orbb orbe orbo orbu orce orco ore- oreb orec oren oreo orer orfe orff orfu ornc orne orno oro- oroe orof oron oror orro orub oucc ouen ouer oufc oufe ouff oun- oune our- oure ourn ouro ouu- rbbb rbbr rcbc rcbo rccb rccc rcfc rcnr rcon rebb rebe rebo rebu recc rece recr recu reeb reef reen refe reff refn refr refu rene renn reno renu reof reou rere rero reru reue reuf reuu rfef rffc rnbr rnco rob- robb robe robo robu rocc roce roco roen roer rofc rofe roff rofo ronc rone rono roob roof roon roor rorc rore roro roru roub roue rouf roun rrfc rrrr rrun rubb rube rubu ruce ruen ruer rufc rufe ruff rufo runc rune runf runn runo rurc rure ruro ruru ruun ubbe ubbo uber uboc ubon ucbc ucfb ucon ucrc ueno ufcu ufer uffe unbe uncc unce uncf unco uneb unec unee unef unen uner unne unno unon unrf unro uocc uofo uone uor- uore urbe ure- urfe urff urne uro- uroo urre urun urur uuen uuno uuoc uuuu