-ol b-u bbb bbc bbk bbl bbn bbo bbs bbu bcb bcc bck bcl bcn bco bcs bcu bkb bkc bkk bkl bkn bko bks blb blc blk bll bln blo bls blu bnb bnc bnk bnl bnn bno bns bnu bob boc bok bol bon boo bos bou bsb bsc bsk bsl bsn bso bss bsu bub buc buk bul bun buo bus buu c-- cbb cbc cbk cbl cbn cbo cbs cbu ccb ccc cck ccl ccn cco ccs ccu ckb ckc cko cks cl- clb clc clk cll cln clo cls clu cn- cnb cnc cnl cnn cno cns cnu co- cob coc cok col con coo cos cou csb csc csk csl csn cso css csu cub cuc cuk cul cun cuo cus cuu kbb kbc kbk kbl kbn kbo kbs kbu kcb kcc kck kcl kcn kcs kcu kkb kkc kkk kkl kkn kks kku kl- klb klc klo kls klu kn- knc knk knl knn kno knu kob koc kok kol kon koo kos kou ksb ksc ksk ksl ksn kso kss ksu kub kuc kuk kul kun kus kuu lbb lbc lbk lbl lbo lbs lbu lcb lcc lck lcl lcn lco lcs lcu lkb lkl lks llb llc llk lll lln llo lls llu lnb lnc lnk lnl lnn lno lns lnu lob loc lok lol lon loo los lou lsb lsc lsk lsl lsn lso lss lsu lub luc luk lul lun luo lus luu nbb nbc nbk nbl nbn nbo nbs nbu ncb ncc nck ncl ncn nco ncs ncu nkc nkk nkn nko nks nku nlb nlc nlk nll nln nlo nls nlu nnb nnc nnk nnl nnn nno nns nnu no- nob noc nok nol non noo nos nou nsb nsc nsk nsl nsn nso nss nsu nub nuc nuk nul nun nuo nus nuu ob- obb obc obk obl obn obo obs obu oc- ocb occ ock ocl ocn oco ocs ocu okb okc okk okl oko oks oku olb olc olk oll oln olo ols olu on- onb onc onk onl onn ono ons onu oo- oob ooc ook ool oon ooo oos os- osb osc osk osl osn oso oss osu ou- ouc ouk oul oun ouo ous sbb sbc sbk sbl sbn sbo sbs sbu scb scc sck scl scn sco scs scu sk- skb skc skk skl sko sks sku slb slc slk sll sln slo sls slu snb snc snk snl snn sno sns snu sob soc sok sol son soo sos sou ss- ssb ssc ssk ssl ssn sso sss ssu sub suc suk sul sun suo sus suu ubb ubc ubk ubl ubn ubo ubs ubu ucb ucc uck ucl ucn uco ucs ucu ukb ukc ukk ukl ukn uku ulb ulc ulk ull uln ulo uls ulu un- unb unc unk unl unn uno uns unu uob uoc uok uol uon uoo uos usb usc usk usl usn uso uss usu uuc uun uus uuu

-ous bbbb bbbs bblb bbls bcbc bcbs bccc bccl bccs bcnu bcos bcsc bcsl bcsn bcss bcuc blcu blkb blls blno blob bloc blok blon bloo blou blss blub blus bnoc bnss bobb bobo bobs bobu bock boco bocs bocu bokn boko boks boku bolk boll boln bolo bols bolu bonc bonk bonn bono bons bonu boob booc book bool boon boos bosc bosk bosn boso boss bosu bouk boul boun bous bscs bslc bsns bson bsos bssc bubb bubo bubs bubu bucc buck buco bucs bucu bukk buko buku bulb bulk bull buls bulu bunb bunk bunn buno buns bunu buol buon busc busk buss busu buus c-bo cbbc cbbs cbcc cbcl cbcn cbcs cbcu cbkl cbkn cbko cblb cblc cbln cbol cbsc cbsn cbus ccbc ccbn cccb cccc cccl cccs cccu cclc ccls ccnb ccnc ccns ccnu ccob ccoc ccsl ccsn ccss ccuc ccus ckbc ckck ckcl ckco ckcs ckln cknb cknc ckns ckob ckoc ckoo ckos cksb cksl ckso clob clok clon cloo clos clou clsc club clun cnbc cnbl cnco cnsl cnss cobb cobo cobs cobu cock coco cocu cok- coko col- colb colk coll coln colo cols colu con- conc conk conn cono cons coob cook cool coon coos cosc cosl coso coss coub couk coul coun cous cscb cscc cscl csco cscs csks cslu csob csos csus cub- cubb cubs cucc cuck cucn cuk- culb culc culk cull culo culs cuno cuon cusb cusk cuso cuss cusu k-lo k-os kbbb kbbc kbbk kbbl kbbo kbbs kbbu kbcb kbck kbcl kbco kbcs kbcu kbkb kbkk kbkl kbko kblb kbll kblo kbls kblu kbnl kbnn kbno kbnu kbob kboc kbok kbon kboo kbos kbsb kbsk kbsn kbso kbss kbsu kbub kbuc kbuk kbul kbun kbus kbuu kcbc kcbk kcbl kcbs kcbu kccb kccc kcck kccl kccu kckc kckk kckl kckn kcko kclc kclk kcll kcln kcls kclu kcnb kcno kcns kcob kcol kcon kcos kcou kcsb kcsc kcsn kcss kcsu kcub kcuk kcul kkbb kkbl kkbn kkbo kkbs kkcb kkck kkcl kkcn kkco kkcs kkkk kklb kklc kkll kkln kklo kkls kknb kknn kkno kkns kknu kkob kkol kkon kkoo kksn kkss kksu kkus kkuu klbb klbc klbl klbn klbs klbu klcb klcc klck klcl klcn klcs klkc klkk klkl klkn klko klks kllb kllc kllk klls klnc klnn klno klob kloc klok klol klon kloo klos klou klsc klsn klsu klub kluk klun kluu knbb knbc knbn knbu kncb knck kncn knco kncu knkk knlb knlc knls knnb knnk knns knob knoc knok knol knon knou knsb knsc knsk knsl knsn knso knss knsu knub knuk knus kobb kobc kobk kobn kobo kobs kobu kocb kock kocn kocs kokb kokc kokk kokn koko koks koku kolb kolc kolk koll koln kolo kols kolu konc konk kono koob kooc kook kool koon kooo koos koou kos- kosb kosc koso koss kosu koub koul kous kouu ksbc ksbl ksbn ksbs kscb ksck kscl kscn ksco kscs kscu kskb kskk kskn ksko ksks ksku kslb kslc kslk ksll ksln kslo kslu ksnb