bbbb bbeb bbfc bboy bbrc bbyo bcbc bccc bcec bcer bcfc bcof bcor bebb bebe bebo beby beck beeb beef beek beer beey befe beff befo beke beko beo- beof beok beor berc bere berk bero berr bery beye beyk bkcy bkry bobb bobe bobo boby boce bock boco boec boee boef boeo boer boey bofe boff boke boko boob booc booe boof book boor bor- bore borf bork boro borr bory boye boyf boyo brcb brce breb brec bree bref brek breo brer brey brfc brkb brob broc broe brok broo bror brrr bry- brye bryk bryo byce byck byer byke byob byoc byre byrk c-bo cbbc cbcc cbce cbcr cbec cbee cbef cber cbfb cbfc cbko cbkr cbre cbry ccbc cccb cccc cccf ccee ccfc ccff ccob ccoc ccrc ccre ccrf cec- cece ceco ceeb ceec cef- cefc ceke ceor cer- cerc cere cerf cero cery cfbc cfbr cfcb cfcf cfco cfcy cffb cffr cfor cfrb cfre cfry cfyk ckbc ckbe ckck ckco ckcy cker ckey ckfr ckob ckoc ckoo ckor ckoy ckrc ckry cobb cobe cobo coby coce cock coco cofc cofe coff cok- coke coko coky coob coof cook cor- corb corc core corf cork coro corr cory coyf coyo coyr crbc crcc crce crcr cre- creb crec cree creo crfc crkc crob croc croe crok croo cror croy cry- cryb cryo cybb cybc cybo cyc- cycb cycc cyfe cyke cyre cyrk cyy- cyyc ebbc ebbo ebbr ebby ebcc eber ebfc eboe eboo ebor eboy ebro ecbc ecbe eccb eccc ecce ecco ecef ecfc ecfr ecko ecky eco- ecrc ecrf ecrr eeby eeee eefe eeke eeoc eerc eero eery efbr efco efeo effy efke efor ekco ekeb ekek eker ekfc eore erbb erbe ercc erce ereb erec erer erfc erke erob eroc eroe eroo errc erre erro eryc erye eyck eyeb eyec eyer eyey eyke eyre eyry eyyr f--k fccf febo fece feck feeb feek feer fefc fefe feff fefo feke feko feof ferb ferc fere ferk fero ferr fery feyr ffcc ffee ffff ffrr foce fock foco foer fofo foke foof fook for- forb fore fork foro forr frbc frcc free freo frey frfc frob froe frye fyce fyeo fyfe fyke fyre fyrk fyry kbbb kbbc kbbe kbbf kbbk kbbo kbbr kbcb kbce kbck kbco kbcr kbcy kbeb kbec kbee kbef kbek kbeo kber kbey kbfb kbfc kbff kbfk kbfo kbfr kbkb kbkf kbkk kbko kbkr kbky kbob kboc kboe kbok kboo kbrb kbrc kbre kbrf kbrk kbro kbry kbyb kbyo kbyr kcbc kcbf kcbk kcbr kccb kccc kcck kccr kccy kceb kcec kcee kceo kcey kcfb kcfc kcfo kcfy kckc kckf kckk kcko kckr kcky kcob kcoe kcof kcor kcrc kcro kcrr kcry kcye kcyk kcyy kebb kebc kebe kebr keck keco kecr keef keek keer kefb kefc keff kefr kekb kekc keke keko keok ker- kerb kerc kere kerf kerk kero kerr keyb keye keyf keyy kfbc kfbk kfcf kfco kfcr kfcy kfeb kfer kffb kfff kffk kfkb kfok kfoo kfor kfoy kfrc kfre kfro kfrr kfry kfyo kfyr kkbb kkbe kkbo kkbr kkcb kkck kkco kkcr kkcy kkfr kkkk kkob kkoo kkor kkoy kkrb kkrc kkre kkrf kkrk kkro kkrr kkyc kkyy kobb kobc kobe kobk kobo kobr koby kocb kocf kock kofc kofe koff kofk kofo kofy kokb kokc koke kokf kokk koko kokr koky koob kooc kook kooo koor korb korc kore korf kork koro korr koye koyf koyo koyy krbb krbe krbk krbr krcb krcc krce krco kreb krec kree kref krek kreo krfc krfe krff krfo krkc krke krkk krko krkr krky krob kroc kroe krof krok kroo kror kroy krrb krrc krre krrf krrk krro krrr krry krye kryk kryo kryy kybb kybc kybe kybo kybr kyby kycc kyck kycr kyee kyfb kyfr kykc kyke kykk kykr kyky kyok kyoo kyor kyoy kyrc kyre kyrf kyrk kyro kyyk kyyo kyyy o-eo obbo obby obec ober obey obkb oboe obok obor oboy obre obro ocbc occc oce ocee ocef ocke ocre ocro ocrr oec- oecc oeec oere oeye oeyo ofcr ofek ofer off- offc offe offo offr offy ofor ofre okby oker okey okko okok okor okre okro okyo oobe ooby oocr ooer ooff oofy ooky oooo oore oory orbb orbe orbo orby orce orco ore- oreb orec orek oreo orer orey orfe orff orke orko oro- oroe orof orok oror oroy orro orry oyce oyee oyer oyke oyre rbbb rbbr rcbc rcbo rccb rccc rcfc rcyc rebb rebe rebk rebo recc rece reck recr recy reeb reef reek refe reff refr reke reko reky reof rere rero rery reye reyk rfef rffc rkkf rob- robb robe robo roby rocc roce rock roco roer roey rofc rofe roff rofo roke rokk roko rokr roky roob roof rook roor rorc rore rork roro rory roye rrfc rrrr rybe ryck ryeb ryfe ryff ryke ryob ryyf yber ybor ybry yccc ycee yeck yeek yeer yefe yeff yeke yeof yerb yere yerk yero yerr yery yeye yeyo yeyr ykey ykko yobo yock yoff yoke yoko yoky yoof yook yore york yoro yory yoye yoyo yrke yrof yyfe yyff yyyy