b-u bbb bbc bbk bbn bbo bbs bbt bbu bcb bcc bck bcn bco bcs bct bcu bkb bkc bkk bkn bko bks bkt bnb bnc bnk bnn bno bns bnt bnu bob boc bok bon boo bos bot bou bsb bsc bsk bsn bso bss bst bsu btb btc btk btn bto bts btt btu bub buc buk bun buo bus but buu c-- cbb cbc cbk cbn cbo cbs cbt cbu ccb ccc cck ccn cco ccs cct ccu ckb ckc cko cks ckt cn- cnb cnc cnn cno cns cnt cnu co- cob coc cok con coo cos cot cou csb csc csk csn cso css cst csu ctb ctc ctk ctn cto cts ctt ctu cub cuc cuk cun cuo cus cut cuu k-t kbb kbc kbk kbn kbo kbs kbu kcb kcc kck kcn kcs kct kcu kkb kkc kkk kkn kks kkt kku kn- knc knk knn kno knt knu kob koc kok kon koo kos kot kou ksb ksc ksk ksn kso kss kst ksu ktb ktc ktk ktn kto kts ktt ktu kub kuc kuk kun kus kut kuu nbb nbc nbk nbn nbo nbs nbt nbu ncb ncc nck ncn nco ncs nct ncu nkc nkk nkn nko nks nkt nku nnb nnc nnk nnn nno nns nnt nnu no- nob noc nok non noo nos not nou nsb nsc nsk nsn nso nss nst nsu ntb ntc ntk ntn nto nts ntt ntu nub nuc nuk nun nuo nus nut nuu ob- obb obc obk obn obo obs obt obu oc- ocb occ ock ocn oco ocs oct ocu okb okc okk oko oks oku on- onb onc onk onn ono ons ont onu oo- oob ooc ook oon ooo oos oot os- osb osc osk osn oso oss ost osu ot- otb otc otk otn oto ots ott otu ou- ouc ouk oun ouo ous out sbb sbc sbk sbn sbo sbs sbt sbu scb scc sck scn sco scs sct scu sk- skb skc skk sko sks skt sku snb snc snk snn sno sns snt snu sob soc sok son soo sos sot sou ss- ssb ssc ssk ssn sso sss sst ssu stb stc stk stn sto sts stt stu sub suc suk sun suo sus sut suu tbb tbc tbk tbn tbo tbs tbt tbu tcb tcc tck tcn tco tcs tct tcu tkb tkc tkk tko tks tkt tnb tnc tnk tnn tno tns tnt to- tob toc tok ton too tos tot tou tsb tsc tsk tsn tso tss tst tsu ttb ttc ttk ttn tto tts ttt ttu tub tuc tuk tun tuo tus tut tuu ubb ubc ubk ubn ubo ubs ubt ubu ucb ucc uck ucn uco ucs uct ucu ukb ukc ukk ukn uku un- unb unc unk unn uno uns unt unu uob uoc uok uon uoo uos uot usb usc usk usn uso uss ust usu utb utc utk utn uto uts utt utu uuc uun uus uut uuu

-ous bbbb bbbs bcbc bcbs bccc bccs bcnu bcos bcsc bcsn bcss bctc bcts bcuc bnoc bnss bobb bobo bobs bobu bock boco bocs bocu bokn boko boks boku bonc bonk bonn bono bons bont bonu boob booc book boon boos boot bosc bosk bosn boso boss bost bosu botb botn boto bots bott bouk boun bous bout bscs bskt bsns bson bsos bssc bsts btcc btcs btob btss bttb btus bubb bubo bubs bubu bucc buck buco bucs bucu bukk buko buku bunb bunk bunn buno buns bunt bunu buon busc busk buss bust busu but- buto buts butt buus c-bo cbbc cbbs cbcc cbcn cbcs cbct cbcu cbkn cbko cbot cbsc cbsn cbtc cbus ccbc ccbn cccb cccc cccs cccu ccnb ccnc ccns ccnu ccob ccoc ccsn ccss ccst cctb cctc cctt ccuc ccus ccut ckbc ckck ckco ckcs cknb cknc ckns cknt ckob ckoc ckoo ckos ckot cksb ckso ckst cktb ckts cnbc cnco cnss cntc cntk cnut cobb cobo cobs cobu cock coco coct cocu cok- coko con- conc conk conn cono cons cont coob cook coon coos coot cosc coso coss cost cotb cotc cotn coto cots cott cotu coub couk coun cous cout cscb cscc csco cscs csks csob csos csot cstc csto csts csus ctbs ctns ctos ctot ctsc ctsn ctss ctsu cttn ctts cub- cubb cubs cucc cuck cucn cuk- cuno cunt cuon cusb cusk cuso cuss cust cusu cut- cutc cuto cuts cutt k-os kbbb kbbc kbbk kbbo kbbs kbbt kbbu kbcb kbck kbco kbcs kbct kbcu kbkb kbkk kbko kbnn kbno kbnu kbob kboc kbok kbon kboo kbos kbot kbsb kbsk kbsn kbso kbss kbst kbsu kbtb kbtc kbtk kbtn kbto kbts kbtt kbub kbuc kbuk kbun kbus kbut kbuu kcbc kcbk kcbs kcbu kccb kccc kcck kcct kccu kckc kckk kckn kcko kcnb kcno kcns kcnt kcob kcon kcos kcot kcou kcsb kcsc kcsn kcss kcst kcsu kctb kctc kctn kcto kctu kcub kcuk kkbb kkbn kkbo kkbs kkbt kkcb kkck kkcn kkco kkcs kkct kkkk kknb kknn kkno kkns kknt kknu kkob kkon kkoo kkot kksn kkss kkst kksu kktc kktk kkts kktu kkus kkut kkuu knbb knbc knbn knbt knbu kncb knck kncn knco knct kncu knkk knkt knnb knnk knns knob knoc knok knon knot knou knsb knsc knsk knsn knso knss knst knsu kntk kntn knto knts kntu knub knuk knus knut kobb kobc kobk kobn kobo kobs kobu kocb kock kocn kocs koct kokb kokc kokk kokn koko koks koku konc konk kono kont koob kooc kook koon kooo koos koot koou kos- kosb kosc koso koss kost kosu kotb kotc kotk kotn koto kots kott kotu koub kous kout kouu ksbc ksbn ksbs kscb ksck kscn ksco kscs kscu kskb kskk kskn ksko ksks ksku ksnb ksnc ksnk ksnn ksns ksnt ksob ksoc ksok kson ksoo ksos ksou kssn ksso ksss ksst kssu kstb kstc kstk kstn ksto ksts kstt kstu ksub ksun ksut ksuu ktbb ktbc ktbn ktbt ktbu ktcc