-ene -one bbbb bbeb bbrc bcbc bccc bcec bcer bcnu bcor bcru bcuc bebb bebe bebo beck becu beeb beek been beer beke beko bene benk benn beno benu beo- beok beon beor berc bere berk bern bero berr beru beuk beur bner bnoc bnor bnrr bobb bobe bobo bobu boce bock boco bocu boec boee boen boeo boer boke bokn boko boku bonc bone bonk bonn bono bonu boob booc booe book boon boor bor- bore bork born boro borr boru boue bouk boun bour brcb brce breb brec bree brek bren breo brer brkb brno brob broc broe brok bron broo bror brou brrr bruc brue brun bubb bube bubo bubu bucc buce buck buco bucu buen buer bueu buke bukk buko buku bunb bune bunk bunn buno bunu buon bur- burb bure burk burn buro burr buru c-bo cbbc cbcc cbce cbcn cbcr cbcu cbec cbee cber cbkn cbko cbkr cbre cbrn ccbc ccbn cccb cccc cccu ccee ccnb ccnc ccne ccnr ccnu ccob ccoc ccrc ccre ccuc cebu cec- cece ceco ceeb ceec ceke cen- cene ceno ceor ceou cer- cerc cere cern cero ckbc ckbe ckck ckco cken cker cknb cknc ckob ckoc ckoo ckor ckrc cnbc cnco cnrc cnrr cobb cobe cobo cobu coce cock coco cocu coen cok- coke coko con- conc cone conk conn cono coob cook coon cor- corb corc core cork corn coro corr coub coue couk coun cour crbc crbu crcc crce crcr cre- creb crec cree cren creo creu crkc crne crob croc croe crok cron croo cror crub crue cruk crun cub- cubb cube cucc cuce cuck cucn cuek cuer cuk- cuke cune cuno cuon curb cure curn curo curr ebbc ebbo ebbr ebcc eben eber ebno eboe ebon eboo ebor ebro ebru ebur ecbc ecbe eccb eccc ecce ecco ecko ecne eco- econ ecou ecrc ecrr ecru eeee eeke eeoc eerc eero ekco ekeb ekek eken eker ekne ekur enb- enbn enbr ence enco enee eneo ener enke enkr ennc enne ennu eno- enoc enoe enon enue enur eone eore erbb erbe ercc erce ereb erec eren erer erke erne erno erob eroc eroe eron eroo errc erre erro erub eruc erur eubc euer eur- eurc eure euro kbbb kbbc kbbe kbbk kbbo kbbr kbbu kbcb kbce kbck kbco kbcr kbcu kbeb kbec kbee kbek kben kbeo kber kbkb kbkk kbko kbkr kbnn kbno kbnr kbnu kbob kboc kboe kbok kbon kboo kbrb kbrc kbre kbrk kbrn kbro kbru kbub kbuc kbue kbuk kbun kbur kbuu kcbc kcbk kcbr kcbu kccb kccc kcck kccr kccu kceb kcec kcee kceo kceu kckc kckk kckn kcko kckr kcnb kcno kcnr kcob kcoe kcon kcor kcou kcrc kcrn kcro kcrr kcru kcub kcue kcuk kebb kebc kebe kebn kebr kebu keck keco kecr keek keen keer kekb kekc keke keko keku ken- kene kenk kenn keno kenr kenu keok keon ker- kerb kerc kere kerk kern kero kerr keru keun keur kkbb kkbe kkbn kkbo kkbr kkcb kkck kkcn kkco kkcr kken kkkk kknb kkne kknn kkno kknu kkob kkon kkoo kkor kkrb kkrc kkre kkrk kkrn kkro kkrr kkuu knbb knbc knbe knbn knbr knbu kncb knce knck kncn knco kncr kncu kneb knec knee knek knen kneo kneu knkk knnb knnk knnr knob knoc knoe knok knon knor knou knrb knrk knro knub knue knuk knur kobb kobc kobe kobk kobn kobo kobr kobu kocb kock kocn koen kokb kokc koke kokk kokn koko kokr koku konc kone konk kono koob kooc kook koon kooo koor koou korb korc kore kork korn koro korr koru koub koue kour kouu krbb krbe krbk krbr krcb krcc krce krcn krco krcu kreb krec kree krek kren kreo kreu krkc krke krkk krkn krko krkr krku krnb krne krnk krnn krno krnu krob kroc kroe krok kroo kror krrb krrc krre krrk krrn krro krrr kruc krue kruk krun krur kubb kubc kube kubo kubr kubu kucb kucc kuce kuco kucr kuek kuen kueu kuke kukk kukn kuku kunc kune kunk kuno kunr kunu kuok kuon kuoo kurb kure kurk kuro kurr kuru kuub kuuk kuur kuuu nbbc nbbo nbcc nbco nber ncbc nccc nccn nccr nccu ncec ncee ncen ncer ncnc ncoc ncor ncrc ncre ncue ncuk nebb nebe nebn nebo nebr nebu necc nece neck neco necr neeb neen neer neke neko neku nene neno nenu neo- neoc neon neoo nerc nere nerk nero nerr neru neuc neue neuk neun neuo neur neuu nkok nkor nnnn nobc nobo nobu noce nock noco noer noke noko non- none nonn nono nonu noo- noob nook noon nooo noor nor- norb norc nore nork norn noro norr noun nour nren nroc nron nrrc nubc nube nubk nuce nuck nucu nuee nuer nuke nuku nunc nune nunk nunn nuno nuoc nuon nurc nure nurn nurr nuru nuuk o-eo obbo obec oben ober obkb oboe obok obon obor obre obro ocbc occc occn oce ocee ocke ocon ocre ocro ocrr ocur oec- oecc oeec oen- oeno oere okcu oken oker okko okno okok okon okor okre okro okun okur onc- once onco one- oneb onec onee onek oneo oner onne onno onon onor onue onur oobe oocr ooer ooku oone oooo oore orbb orbe orbo orbu orce orco ore- oreb orec orek oren oreo orer orke orko ornc orne orno oro- oroe orok oron oror orro orub oucc ouen ouer oun- oune our- oure ourn ouro ouu- rbbb rbbr rcbc rcbo rccb rccc rcnr rcon rebb rebe rebk rebo rebu recc rece reck recr recu reeb reek reen reke reko rene renk renn reno renu reou rere rero reru reue reuk reuu rnbr rnco rob- robb robe robo robu rocc roce rock roco roen roer roke rokk roko rokr roku ronc rone ronk rono roob rook roon roor rorc rore rork roro roru roub roue rouk roun rrrr rrun rubb rube rubu ruce ruck ruen ruer ruke rukk rukn ruku runc rune runk runn runo ruok rurc rure ruro ruru ruun ubbe ubbo