bbbb bbrc bcbc bccc bcnu bcor bcru bctc bcuc bnoc bnor bnrr bobb bobo bobu bock boco bocu bokn boko boku bonc bonk bonn bono bont bonu boob booc book boon boor boot bor- bork born boro borr bort boru botb botn boto bott bouk boun bour bout brcb brkb brno brob broc brok bron broo bror brot brou brrr brtc bruc brun brut btcc btob btor btrc btrt bttb bubb bubo bubu bucc buck buco bucu bukk buko buku bunb bunk bunn buno bunt bunu buon bur- burb burk burn buro burr burt buru but- buto butt c-bo cbbc cbcc cbcn cbcr cbct cbcu cbkn cbko cbkr cbot cbrn cbrt cbtc ccbc ccbn cccb cccc cccu ccnb ccnc ccnr ccnu ccob ccoc ccrc ccrt cctb cctc cctt ccuc ccut ckbc ckck ckco cknb cknc cknt ckob ckoc ckoo ckor ckot ckrc cktb cnbc cnco cnrc cnrr cnrt cntc cntk cntr cnut cobb cobo cobu cock coco coct cocu cok- coko con- conc conk conn cono cont coob cook coon coot cor- corb corc cork corn coro corr cort cotb cotc cotn coto cott cotu coub couk coun cour cout crbc crbu crcc crcr crkc crob croc crok cron croo cror crot crrt crtc crub cruk crun crut ctor ctot ctrc ctrn cttn cub- cubb cucc cuck cucn cuk- cuno cunt cuon curb curn curo curr curt cut- cutc cuto cutt kbbb kbbc kbbk kbbo kbbr kbbt kbbu kbcb kbck kbco kbcr kbct kbcu kbkb kbkk kbko kbkr kbnn kbno kbnr kbnu kbob kboc kbok kbon kboo kbot kbrb kbrc kbrk kbrn kbro kbrt kbru kbtb kbtc kbtk kbtn kbto kbtr kbtt kbub kbuc kbuk kbun kbur kbut kbuu kcbc kcbk kcbr kcbu kccb kccc kcck kccr kcct kccu kckc kckk kckn kcko kckr kcnb kcno kcnr kcnt kcob kcon kcor kcot kcou kcrc kcrn kcro kcrr kcrt kcru kctb kctc kctn kcto kctu kcub kcuk kkbb kkbn kkbo kkbr kkbt kkcb kkck kkcn kkco kkcr kkct kkkk kknb kknn kkno kknt kknu kkob kkon kkoo kkor kkot kkrb kkrc kkrk kkrn kkro kkrr kkrt kktc kktk kktu kkut kkuu knbb knbc knbn knbr knbt knbu kncb knck kncn knco kncr knct kncu knkk knkt knnb knnk knnr knob knoc knok knon knor knot knou knrb knrk knro kntk kntn knto kntr kntu knub knuk knur knut kobb kobc kobk kobn kobo kobr kobu kocb kock kocn koct kokb kokc kokk kokn koko kokr koku konc konk kono kont koob kooc kook koon kooo koor koot koou korb korc kork korn koro korr kort koru kotb kotc kotk kotn koto kotr kott kotu koub kour kout kouu krbb krbk krbr krbt krcb krcc krcn krco krcu krkc krkk krkn krko krkr krku krnb krnk krnn krno krnt krnu krob kroc krok kroo kror krrb krrc krrk krrn krro krrr krrt krtc krtk krtn krto krtr kruc kruk krun krur ktbb ktbc ktbn ktbr ktbt ktbu ktcc ktck ktco ktcr ktkb ktkc ktkk ktkn ktko ktkr ktkt ktku ktnc ktnk ktnn ktno ktnt ktob ktoc ktok kton ktoo ktor ktot ktrb ktrc ktrk ktrn ktro ktrr ktrt ktru kttc kttk kttn ktto kttr kttt kttu ktub ktuc ktun kubb kubc kubo kubr kubu kucb kucc kuco kucr kukk kukn kuku kunc kunk kuno kunr kunt kunu kuok kuon kuoo kurb kurk kuro kurr kurt kuru kuto kutr kutt kutu kuub kuuk kuur kuuu nbbc nbbo nbcc nbco ncbc nccc nccn nccr ncct nccu ncnc ncoc ncor ncrc nctc nctr ncuk nknt nkok nkor nktr nnnn nnot nntn nobc nobo nobu nock noco noct noko non- nonn nono nont nonu noo- noob nook noon nooo noor noot nor- norb norc nork norn noro norr nort not- noto nott noun nour nout nroc nron nrrc ntbc ntcc ntnu ntrc ntru ntto nttr ntuc nubc nubk nuck nucu nuku nunc nunk nunn nuno nunt nuoc nuon nurc nurn nurr nurt nuru nutt nutu nuuk obbo obkb obok obon obor obot obro ocbc occc occn occt ocon ocro ocrr oct- octo ocur okcu okko okno okok okon okor okot okro okto okun okur onc- onco onct onno onon onor ont- ontc onto onur onut oocr ooku oont oooo oort ootb orbb orbo orbu orco orko ornc orno oro- orok oron oror orot orro ortc orto orub oto- otok oton otoo otor otro otto ottu otur oucc oun- our- ourn ouro ourt out- outb outo ouu- rbbb rbbr rcbc rcbo rccb rccc rcnr rcon rctc rnbr rnco rnnt rnot rnut rob- robb robo robt robu rocc rock roco rokk roko rokr roku ronc ronk rono ront roob rook roon roor root rorc rork roro rort roru rotc rotk rotn roto rotr rott roub rouk roun rout rrrr rrun rtcc rtkn rubb rubu ruck ruct rukk rukn ruku runc runk runn runo runt ruok rurc ruro ruru ruto rutt rutu ruun tbcb tbcc tbrb tccc tccu tcnn tcon tctc tkon tnbc tncc tnut tobo tobt tobu tock toco toko toku tonb tonk tonn tono tonu took toon toor toot torc tork torn toro torr tort toru totc toto totr tott touk toun tour tout trcc trno troc tron troo trot trou trtc trtr trub truc truk trun trut truu ttbb ttcn tton tttt tubb tubo tubr tubu tucc tuck tuco tuko tunb tunc tunk tunn tuno tunu tuor turb turc turk turn turo turr turt turu tuto tutt tutu tuuo ubbo uboc ubon ucbc ucon ucrc ucut ukcc ukko uknc ukok ukon ukrc ukur uncc unco unct unkn unko unno unon unro untb unto unut uocc uor- uro- urok uroo uruk urun urur urut utor utto uttu uuno uuoc uuuu