bbbb bcbc bccc bcnu bctc bcuc bnoc bobb bobo bobu bock boco bocu bokn boko boku bonc bonk bonn bono bont bonu boob booc book boon boot botb botn boto bott bouk boun bout btcc btob bttb bubb bubo bubu bucc buck buco bucu bukk buko buku bunb bunk bunn buno bunt bunu buon but- buto butt c-bo cbbc cbcc cbcn cbct cbcu cbkn cbko cbot cbtc ccbc ccbn cccb cccc cccu ccnb ccnc ccnu ccob ccoc cctb cctc cctt ccuc ccut ckbc ckck ckco cknb cknc cknt ckob ckoc ckoo ckot cktb cnbc cnco cntc cntk cnut cobb cobo cobu cock coco coct cocu cok- coko con- conc conk conn cono cont coob cook coon coot cotb cotc cotn coto cott cotu coub couk coun cout ctot cttn cub- cubb cucc cuck cucn cuk- cuno cunt cuon cut- cutc cuto cutt kbbb kbbc kbbk kbbo kbbt kbbu kbcb kbck kbco kbct kbcu kbkb kbkk kbko kbnn kbno kbnu kbob kboc kbok kbon kboo kbot kbtb kbtc kbtk kbtn kbto kbtt kbub kbuc kbuk kbun kbut kbuu kcbc kcbk kcbu kccb kccc kcck kcct kccu kckc kckk kckn kcko kcnb kcno kcnt kcob kcon kcot kcou kctb kctc kctn kcto kctu kcub kcuk kkbb kkbn kkbo kkbt kkcb kkck kkcn kkco kkct kkkk kknb kknn kkno kknt kknu kkob kkon kkoo kkot kktc kktk kktu kkut kkuu knbb knbc knbn knbt knbu kncb knck kncn knco knct kncu knkk knkt knnb knnk knob knoc knok knon knot knou kntk kntn knto kntu knub knuk knut kobb kobc kobk kobn kobo kobu kocb kock kocn koct kokb kokc kokk kokn koko koku konc konk kono kont koob kooc kook koon kooo koot koou kotb kotc kotk kotn koto kott kotu koub kout kouu ktbb ktbc ktbn ktbt ktbu ktcc ktck ktco ktkb ktkc ktkk ktkn ktko ktkt ktku ktnc ktnk ktnn ktno ktnt ktob ktoc ktok kton ktoo ktot kttc kttk kttn ktto kttt kttu ktub ktuc ktun kubb kubc kubo kubu kucb kucc kuco kukk kukn kuku kunc kunk kuno kunt kunu kuok kuon kuoo kuto kutt kutu kuub kuuk kuuu nbbc nbbo nbcc nbco ncbc nccc nccn ncct nccu ncnc ncoc nctc ncuk nknt nkok nnnn nnot nntn nobc nobo nobu nock noco noct noko non- nonn nono nont nonu noo- noob nook noon nooo noot not- noto nott noun nout ntbc ntcc ntnu ntto ntuc nubc nubk nuck nucu nuku nunc nunk nunn nuno nunt nuoc nuon nutt nutu nuuk obbo obkb obok obon obot ocbc occc occn occt ocon oct- octo okcu okko okno okok okon okot okto okun onc- onco onct onno onon ont- ontc onto onut ooku oont oooo ootb oto- otok oton otoo otto ottu oucc oun- out- outb outo ouu- tbcb tbcc tccc tccu tcnn tcon tctc tkon tnbc tncc tnut tobo tobt tobu tock toco toko toku tonb tonk tonn tono tonu took toon toot totc toto tott touk toun tout ttbb ttcn tton tttt tubb tubo tubu tucc tuck tuco tuko tunb tunc tunk tunn tuno tunu tuto tutt tutu tuuo ubbo uboc ubon ucbc ucon ucut ukcc ukko uknc ukok ukon uncc unco unct unkn unko unno unon untb unto unut uocc utto uttu uuno uuoc uuuu