a-ak aaaa aaab aaac aaar aaas aaba aabb aabc aabt aaca aacb aacc aack aacr aacs aact aacu aaka aaku aara aarc aars aart aaru aasa aasc aass aast aasu aata aatc aatk aatt aaus abaa abab abac abak abar abas abat abau abb- abba abbb abbr abbs abbt abca abcb abcc abcr abcs abct abra abrc abrs abs- absa abss absu abta abts abtu abua abuk abus abut ac-t acaa acab acac acar acas acat acba acca accc accs acct accu acks acr- acra acrc acrr acrs acsa acsc acss acst acta actc acts actt actu acu- acur acus acut akaa akar akas akca akka akku akr- akra aksa akst aksu akua arab arac arak arar aras arat arau arba arbs arc- arca arcs arct arka arks arr- arra arrc arrk arrr arrs arrt arru ars- arsa arsc arsk arst arsu arta artc artr arts arua arub arut asaa asab asac asak asar asas asat asau asba asbu asc- asca ascb ascc ascr asct aska askr asks askt asra asrc asrs asru assa assc assk assr asss asst assu asta astb astc astr asts asub asur asus at-t ataa atab atac atak atar atas atat atbs atca atcc atck atcr atcs atka atkt atra atrc atrk atru atsb atsc atst atta attr atts attu atua atub atuc atuk atur atus auaa auca auct auks aur- aura ausa aust ausu aut- auts baaa baak baar baas baat baba babb babr babs babu bac- baca bacc back bacs bact bak- baka bakr baks bakt baku bar- bara barb barc bark barr bars bart baru basa basc bask bass bast basu bata batc bats batt batu bau- bauk baur bbas bbau bbbb bbbs bbrc bcaa bcar bcas bcat bcbc bcbs bcca bccc bccs bcra bcrs bcru bcsa bcsc bcss bctc bcts bcuc brab brac brak bras brat brau brca brcb brka brkb brrr brrs brsb brsr brst brtc bruc brus brut bsaa bsac bsas bsat bscs bskt bsra bssc bsts btaa btcc btcs btrc btrt btss bttb btus buar buat buba bubb bubs bubu buca bucc buck bucs bucu buka bukk buku bur- bura burb burk burr burs burt buru busa busc busk buss bust busu but- buta buts butt buus caaa caab caac caas caat caba cabs cabu cac- caca cacc cack cacr caka cara carb carc cark carr cars cart casa casb casc cask casr cass cast casu cat- cata catb catc cats catt catu cauc cauk caus caut cbac cbar cbat cbbc cbbs cbca cbcc cbcr cbcs cbct cbcu cbka cbkr cbrt cbsa cbsc cbta cbtc cbus ccaa ccab ccac ccar ccas ccat ccba ccbc ccca cccb cccc cccs cccu ccra ccrc ccrs ccrt ccsa ccss ccst cctb cctc cctt ccuc ccus ccut ckac ckat ckbc ckck ckcs ckrc cksa cksb ckst cktb ckts crab crac crar cras crat crau crbc crbu crca crcc crcr crkc crrt crsa crss crst crtc crts crub cruk crus crut csaa csab csac csak csar csas csat cscb cscc cscr cscs cska csks csra csrc csrs cssa cssr csta cstc cstr csts csua csur csus ctab ctba ctbs ctca ctrc ctrs ctsa ctsc ctss ctsu ctta ctts cuau cub- cuba cubb cubs cuca cucc cuck cuk- cuka cura curb curr curs curt cusa cusb cusk cuss cust cusu cut- cuta cutc cuts cutt kaaa kaab kaak kaar kaas kaat kaba kabb kabc kabr kabu kacb kacc kacs kact kacu kaka kakc kakk kaks kakt kaku kara karb kark karr kars kart karu kas- kasa kasb kasc kask kasr kass kast kasu kat- kata katb katc katk katr kats katt katu kau- kaub kauc kauk kaur kaus kbaa kbab kbac kbak kbar kbas kbat kbba kbbb kbbc kbbk kbbr kbbs kbbt kbbu kbca kbcb kbck kbcr kbcs kbct kbcu kbkb kbkk kbkr kbra kbrb kbrc kbrk kbrt kbru kbsa kbsb kbsk kbsr kbss kbst kbsu kbta kbtb kbtc kbtk kbtr kbts kbtt kbua kbub kbuc kbuk kbur kbus kbut kbuu kcaa kcab kcac kcar kcas kcat kcau kcba kcbc kcbk kcbr kcbs kcbu kcca kccb kccc kcck kccr kcct kccu kckc kckk kckr kcrc kcrr kcrs kcrt kcru kcsa kcsb kcsc kcsr kcss kcst kcsu kcta kctb kctc kctu kcua kcub kcuk kkaa kkac kkar kkat kkba kkbb kkbr kkbs kkbt kkcb kkck kkcr kkcs kkct kkkk kkrb kkrc kkrk kkrr kkrs kkrt kksa kksr kkss kkst kksu kktc kktk kkts kktu kkua kkus kkut kkuu krab krac krak krar kras krat krba krbb krbk krbr krbt krca krcb krcc krcs krcu krka krkc krkk krkr krks krku krrb krrc krrk krrr krrs krrt krsa krsc krsk krsr krss krst krsu krta krtc krtk krtr krts krua kruc kruk krur ksab ksac ksak ksar ksas ksat ksau ksba ksbc ksbr ksbs ksca kscb ksck kscr kscs kscu kska kskb kskk kskr ksks ksku ksra ksrb ksrr ksrs ksrt kssa kssr ksss ksst kssu ksta kstb kstc kstk kstr ksts kstt kstu ksua ksub ksut ksuu ktaa ktak ktar ktas ktat ktba ktbb ktbc ktbr ktbt ktbu ktcc ktck ktcr ktcs ktkb ktkc ktkk ktkr ktks ktkt ktku ktrb ktrc ktrk ktrr ktrs ktrt ktru ktsa ktsc ktsr ktst ktsu kttc kttk kttr ktts kttt kttu ktub ktuc kuac kuar kuat kuau kuba kubb kubc kubr kubs kubu kuca kucb kucc kucr kuka kukk kuks kuku kura kurb kurk kurr kurs kurt kuru kusa kusb kusc kust kusu kuta kutr kuts kutt kutu kuub kuuk kuur kuuu raab raak raas raat raba rabb rabk rabs rabu rac- raca racc rack racs ract racu raka rakk rakt raku rara rarb rark rars rasa rasc rask rass rast rasu rata ratk rats ratt ratu raua raub rauc rauk raus raut rbbb rbbr rbbs rbss rbst rcac rcas rcbc rccb rccc rccs rcsa rcsc rcss rctc rcts rkss rkts rras rrat rrrr rsaa rscc rscs rssa rsts rstu rsua rtas rtca rtcc rtss rtts ruas ruba rubb rubs rubu ruca ruck ruct ruka rukk ruku rura rurc rurs ruru rusa rusk russ rust rusu ruta ruts rutt rutu