bbbb bbbs bbci bbrc bbwc bbwr bbws bcbc bcbs bccc bcci bccs bcis bcit bcrs bcru bcsc bcss bctc bcts bcuc bibb bibi bibs bicc bici bick bics biis biku birb biri birk birr birs birt biru bis- bisc bisk biss bist bisu bitc bits bitt bitu biw- brcb brcw bric brik bris brit brkb brrr brrs brsb brsr brst brtc bruc brus brut bsci bscs bsic bskt bssc bsts btcc btcs btrc btrt btss bttb btus btwc bubb bubi bubs bubu bucc buci buck bucs bucu buic buik buir buis buit buiu buki bukk buku bur- burb buri burk burr burs burt buru busc busi busk buss bust busu but- buti buts butt buus cbbc cbbs cbcc cbcr cbcs cbct cbcu cbir cbit cbkr cbrt cbsc cbsi cbtc cbus ccbc cccb cccc ccci cccs cccu ccic ccii ccir ccis cciw cckw ccrc ccri ccrs ccrt ccsi ccss ccst cctb cctc cctt ccuc ccus ccut cibc cibi cicc cici cicr cics cict cicu ciii ciis ciit cikr cirb circ ciri cirk cirr cirs cirt cis- cisc cisk cisr ciss cist citb citi cits citt citu ciuc cius ciws ciww ckbc ckbi ckck ckcs ckcw ckrc ckrw cksb ckst cksw cktb ckts ckwr ckws ckww crbc crbu crcc crcr crib cric crik cris crit criu crkc crrt crss crst crtc crts crub cruk crus crut cscb cscc csci cscr cscs csib csik csir csis csit csks csrc csrs cssr cstc cstr csts csur csus cswk csws ctbi ctbs ctic ctrc ctrs ctsc ctss ctsu ctts cttw cub- cubb cubi cubs cucc cuci cuck cui- cuir cuis cuit cuk- curb curi curr curs curt cusb cusk cuss cust cusu cut- cutc cuts cutt cuws cwis cwrw cwts ibcs ibis ibrc ibri ibss ibtb ibtc ibts ibus ibwc icbc icbs iccb iccc icci iccr iccs icct iccu icis icks icrc icrr icrs icrt icru icrw icsb icsc icsi icsr icss icst icts icub icus icws iiii iiis iiit iirc iirs iisc iisi iisr iist iisu iitr iitt iiuc iiwi ikki ikri iksu ircc ircs ircu iri- iric iris irki irks irrc irri irrs irti irts irus isbt iscc isci iscr iscs isct iscu isic isis isit isku isri issc issi issr isss issu istc isti istr ists isus iswc itbs itcs itic itis itri itrs itsi itsu itur iucc iuiu iuss iust iwcc iwis iwiw k-ci kbbb kbbc kbbi kbbk kbbr kbbs kbbt kbbu kbbw kbcb kbci kbck kbcr kbcs kbct kbcu kbcw kbib kbic kbik kbis kbit kbiu kbkb kbkk kbkr kbkw kbrb kbrc kbri kbrk kbrt kbru kbrw kbsb kbsi kbsk kbsr kbss kbst kbsu kbsw kbtb kbtc kbtk kbtr kbts kbtt kbtw kbub kbuc kbuk kbur kbus kbut kbuu kbuw kbwb kbwc kbww kcbc kcbi kcbk kcbr kcbs kcbu kcbw kccb kccc kcci kcck kccr kcct kccu kcic kcii kcir kcis kcit kciu kckc kckk kckr kcrc kcri kcrr kcrs kcrt kcru kcrw kcsb kcsc kcsi kcsr kcss kcst kcsu kctb kctc kcti kctu kcub kcui kcuk kcwb kcwc kcwk kcwr kcwt kcwu kibb kibc kibi kibr kibs kibt kibu kicb kicc kick kicr kics kict kicw kiic kiii kiik kiis kiit kiiu kikc kiki kikk kikr kikt kiku kirb kirc kiri kirk kirr kirs kirt kiru kisc kisi kisk kisr kiss kist kisu kisw kitc kiti kitr kits kitt kitu kiur kiuu kiwb kiwi kiwr kkbb kkbi kkbr kkbs kkbt kkcb kkci kkck kkcr kkcs kkct kkcw kkic kkik kkit kkkk kkrb kkrc kkrk kkrr kkrs kkrt kksi kksr kkss kkst kksu kksw kktc kktk kkts kktu kkus kkut kkuu kkwb kkwk kkws krbb krbi krbk krbr krbt krbw krcb krcc krci krcs krcu krcw krib krik kris krit krkc krki krkk krkr krks krku krkw krrb krrc krri krrk krrr krrs krrt krrw krsc krsk krsr krss krst krsu krsw krtc krti krtk krtr krts kruc krui kruk krur krwb krwc krwk krwr ksbc ksbi ksbr ksbs ksbw kscb ksci ksck kscr kscs kscu ksib ksii ksik ksir ksis ksit ksiw kskb kskk kskr ksks ksku ksrb ksrr ksrs ksrt ksrw kssi kssr ksss ksst kssu kstb kstc ksti kstk kstr ksts kstt kstu kstw ksub ksui ksut ksuu ksuw kswb kswc kswi ksws kswt ksww ktbb ktbc ktbr ktbt ktbu ktcc ktck ktcr ktcs ktib ktic ktik ktis ktkb ktkc ktkk ktkr ktks ktkt ktku ktrb ktrc ktri ktrk ktrr ktrs ktrt ktru ktrw ktsc ktsr ktst ktsu ktsw kttc ktti kttk kttr ktts kttt kttu kttw ktub ktuc ktui ktuw ktwb ktwi ktws ktwu kubb kubc kubr kubs kubu kucb kucc kuci kucr kucw kuic kuik kuki kukk kuks kuku kurb kuri kurk kurr kurs kurt kuru kusb kusc kust kusu kusw kuti kutr kuts kutt kutu kuub kuuk kuur kuuu kuwc kuwi kuwr kuws kuwt kuww kwbc kwbi kwbt kwbu kwbw kwck kwcr kwic kwik kwit kwkb kwkc kwkk kwkr kwkw kwrb kwri kwrk kwrr kwrs kwrt kwru kwrw kwsc kwsk kwss kwst kwsu kwsw kwtr kwts kwtu kwtw kwub kwur kwut kwwk kwwr kwws kwwt rbbb rbbr rbbs rbis rbss rbst rcbc rccb rccc rccs rcic rcis rcsc rcsi rcss rctc rcti rcts rib- ribs ribu ricc rick rics rict riis riki rikk riku riri rirs risc risi risk riss rist risu riti rits ritt ritu rius rkss rkts rrrr rsbi rscc rscs rsis rsts rstu rtcc rtss rtts rubb rubi rubs rubu ruci ruck ruct ruis ruit ruki rukk ruku rurc ruri rurs ruru rusi rusk russ rust rusu ruti ruts rutt rutu ruwi rwcs rwik s-ib s-ic s-ii sbbs sbcc sbcs sbct sbic sbrk sbsi sbst sbtc sbtk sbus sbwr scbi sccc sccs scct sci- scic scir scis scit sck- scr- scrc scri scrs scsc scsi scsr scst scsu sctc sctr scts scub scur scut sibc sibi sibs sibu sicc sici sick sics sicu siik siit siki sikr siks siku sirc siri sirk sirr sirs sirt siru sisc sisi sisk siss sist sisu sit- sitc siti sits sitt situ siui sius siut siwi skic skik skir skis skit skiu skrt skss skui