bbbb bbbs bbch bbhs bbrc bcbc bcbs bccc bccs bchs bcor bcos bcrs bcsc bcss bctc bcts bhcc bhhs bhor bhot bhrt bkhs bobb bobo bobs boch bock boco bocs boho bohr bohs boht boko boks boob booc booh book boor boos boot bor- borh bork boro borr bors bort bosc bosh bosk boso boss bost botb both boto bots bott brcb brhs brkb brob broc broh brok broo bror bros brot brrr brrs brsb brsr brst brtc bscs bshs bskt bsos bssc bsts btcc btcs bths btob btor btrc btrt btss bttb c-bo cbbc cbbs cbcc cbcr cbcs cbct cbhs cbko cbkr cbot cbrh cbrt cbsc cbtc ccbc cccb cccc cccs cchr cchs ccob ccoc ccrc ccrs ccrt ccss ccst cctb cctc cctt chch chcs chhs chkb chks chkt choc choh chok choo chor chos chrb chrc chro chrr chrs chrt chsc chsh chsr chst chto chtr chtt ckbc ckch ckck ckco ckcs ckhs ckob ckoc ckoo ckor ckos ckot ckrc cksb cksh ckso ckst cktb ckts cobb cobh cobo cobs coch cock coco coct coho cohs cok- coko coob cooh cook coos coot cor- corb corc cork coro corr cors cort cosc cosh coso coss cost cotb cotc coth coto cots cott crbc crcc crcr crhs crkc crob croc croh crok croo cror crot crrt crss crst crtc crts cscb cscc csch csco cscr cscs cshs csks csob csor csos csot csrc csrs cssr cstc csto cstr csts ctbs cths ctor ctos ctot ctrc ctrs ctsc ctss ctts hbbs hbhs hboc hbos hbrs hbss hcbc hcbs hccb hccc hcch hccs hchs hcsc hcso hcss hcst hhhh hhhs hkcc hkcs hkst hobo hobs hoch hock hocr hocs hoho hoko hoks hook hoor hoos hoot horc hork horo horr hors hort hosh hoss host hotb hoth hoto hotr hots hott hrhs hrob hros hrrc hrso hrtb hsbc hscc hsct hshs hsob hsts htcc hths htoh htrk htsc httr k-os kbbb kbbc kbbk kbbo kbbr kbbs kbbt kbcb kbch kbck kbco kbcr kbcs kbct kbhb kbhc kbhh kbhr kbhs kbht kbkb kbkk kbko kbkr kbob kboc kbok kboo kbos kbot kbrb kbrc kbrh kbrk kbro kbrt kbsb kbsk kbso kbsr kbss kbst kbtb kbtc kbtk kbto kbtr kbts kbtt kcbc kcbk kcbr kcbs kccb kccc kcck kccr kcct kchh kchk kcho kchr kchs kckc kckk kcko kckr kcob kcoh kcor kcos kcot kcrc kcrh kcro kcrr kcrs kcrt kcsb kcsc kcsr kcss kcst kctb kctc kcto khbc khbr khbs khbt khcb khcc khch khck khcs khct khhk khho khhs khkk khkr khks khob khoc khok khor khot khrk khro khrr khrt khss khst khtb khth khtk khto khtr khts khtt kkbb kkbo kkbr kkbs kkbt kkcb kkch kkck kkco kkcr kkcs kkct kkhb kkhh kkhk kkhr kkkk kkob kkoh kkoo kkor kkot kkrb kkrc kkrh kkrk kkro kkrr kkrs kkrt kksr kkss kkst kktc kktk kkts kobb kobc kobk kobo kobr kobs kocb koch kock kocs koct kohh koho kohr kohs koht kokb kokc kokh kokk koko kokr koks koob kooc kook kooo koor koos koot korb korc kork koro korr kors kort kos- kosb kosc kosh koso kosr koss kost kotb kotc koth kotk koto kotr kots kott krbb krbk krbr krbt krcb krcc krch krco krcs krhc krhs krkc krkh krkk krko krkr krks krob kroc kroh krok kroo kror kros krrb krrc krrk krro krrr krrs krrt krsc krsh krsk krsr krss krst krtc krth krtk krto krtr krts ksbc ksbh ksbr ksbs kscb ksch ksck ksco kscr kscs kshb kshk ksho kshr kshs kskb kskk ksko kskr ksks ksob ksoc ksok ksoo ksor ksos ksrb ksrh ksro ksrr ksrs ksrt ksso kssr ksss ksst kstb kstc ksth kstk ksto kstr ksts kstt ktbb ktbc ktbr ktbt ktcc ktch ktck ktco ktcr ktcs kthc kthh kthk ktho kthr kths ktht ktkb ktkc ktkk ktko ktkr ktks ktkt ktob ktoc ktoh ktok ktoo ktor ktot ktrb ktrc ktrh ktrk ktro ktrr ktrs ktrt ktsc ktso ktsr ktst kttc ktth kttk ktto kttr ktts kttt obbo obhs obkb obok obor obos obot obrh obro obsr obss obst obts ocbc occc occt ochs ocht ocks ocos ocro ocrr ocrs oct- octo octs ohcc ohho ohhs ohob ohoh ohok ohos ohso ohss ohto okko okok okor okot okro okso okto oocr ooho oohs oooh oooo ooos oort oost ootb oots orbb orbo orbs orch orco orcs orhs orko oro- orok oror oros orot orro orrs orsk orso ortc orth orto orts oscc osco oshc osho oshs osoo osor osos osro ossb osso ostc ostr osts otbs otho othr oths oto- otoh otok otoo otor otos otro otrs otso otto otts rbbb rbbr rbbs rbhs rboh rbss rbst rcbc rcbo rccb rccc rccs rchb rchs rcos rcsc rcss rctc rcts rhhs rhob rhoc rhoh rhos rkos rkss rkts rob- robb robo robs robt rocc roch rock roco rocs rohr rohs rokh rokk roko rokr roks roob rook roor roos root rorc rork roro rort rosc rosh roso ross rost rotc roth rotk roto rotr rots rott rrhs rrrr rscc rsch rscs rshs rsos rsts rtcc rthk rths rtss rtts s-os sbbs sbcc sbcs sbct sbhc sbhk sbhs sbor sbot sbrk sbst sbtc sbtk sccc sccs scct sch- schh scho schr schs sck- scob scoh scok scoo scor scot scr- scrc scrs scsc scsh scso scsr scst sctc scto sctr scts shbs shbt shcc shhh shhs shok shoo shor shos shot shrs shsc shts skhs skor skot skrt skss sobo sobr sobs sobt soch sock soco socr socs sohh soho sohs sokk soko sook soor soos soot sorb sorh soro sorr sors sort sosh soso soss sost sotc soth sotk soto sots srbc srcc srch srct srhs sros srtr ssbr sscc sscs sshs ssoc ssot ssrc ssrs sssb sssc sssh ssss sstb sstc ssth ssts stbc stbs stcc stch stcs sths stks stob stok stoo stor stos stot strc strk stro strs stss sttc sttr tbbs tbcb tbcc tbhs tbrb tbst tcbs tccc tch- tchh tcho tchr tchs tcos tcsh tctc tcts thbs thch