a-a a-b a-t aaa aab aak aar aas aat aau ab- aba abb abk abr abs abt abu aka akb akk akr aks aku ar- ara arb ark arr ars art aru as- asa asb ask asr ass ast asu at- ata atb atr ats att atu au- aua aub auk aur aus aut b-u baa bab bak bar bas bat bau bba bbb bbk bbr bbs bbt bbu bka bkb bkk bkr bks bkt bra brb brk brr brs brt bru bsa bsb bsk bsr bss bst bsu bta btb btk btr bts btt btu bua bub buk bur bus but buu k-t ka- kaa kab kak kar kas kat kau kba kbb kbk kbr kbs kbu kkb kkk kkr kks kkt kku kra krk krr krs krt kru ksa ksb ksk ksr kss kst ksu kta ktb ktk ktr kts ktt ktu kub kuk kur kus kut kuu ra- raa rab rak rar ras rat rau rba rbb rbk rbr rbs rbt rbu rkb rkk rks rkt rku rra rrb rrk rrr rrs rrt rru rsa rsb rsk rsr rss rst rsu rta rtb rtk rtr rts rtt rtu rua rub ruk rur rus rut ruu saa sab sak sar sas sat sau sba sbb sbk sbr sbs sbt sbu sk- ska skb skk skr sks skt sku sr- sra srb srk srr srs srt ss- ssa ssb ssk ssr sss sst ssu sta stb stk str sts stt stu sua sub suk sur sus sut suu taa tab tak tar tas tat tau tba tbb tbk tbr tbs tbt tbu tka tkb tkk tkr tks tkt tra trb trk trr trs trt tru tsa tsb tsk tsr tss tst tsu tta ttb ttk ttr tts ttt ttu tua tub tuk tur tus tut tuu ua- uaa uab uak uar uas uat uau uba ubb ubk ubr ubs ubt ubu uka ukb ukk ukr uku ur- ura urb urk urr urs urt uru usa usb usk usr uss ust usu uta utb utk utr uts utt utu uua uur uus uut uuu

a-ak aaaa aaab aaar aaas aaba aabb aabt aaka aaku aara aars aart aaru aasa aass aast aasu aata aatk aatt aaus abaa abab abak abar abas abat abau abb- abba abbb abbr abbs abbt abra abrs abs- absa abss absu abta abts abtu abua abuk abus abut akaa akar akas akka akku akr- akra aksa akst aksu akua arab arak arar aras arat arau arba arbs arka arks arr- arra arrk arrr arrs arrt arru ars- arsa arsk arst arsu arta artr arts arua arub arut asaa asab asak asar asas asat asau asba asbu aska askr asks askt asra asrs asru assa assk assr asss asst assu asta astb astr asts asub asur asus at-t ataa atab atak atar atas atat atbs atka atkt atra atrk atru atsb atst atta attr atts attu atua atub atuk atur atus auaa auks aur- aura ausa aust ausu aut- auts baaa baak baar baas baat baba babb babr babs babu bak- baka bakr baks bakt baku bar- bara barb bark barr bars bart baru basa bask bass bast basu bata bats batt batu bau- bauk baur bbas bbau bbbb bbbs brab brak bras brat brau brka brkb brrr brrs brsb brsr brst brus brut bsaa bsas bsat bskt bsra bsts btaa btrt btss bttb btus buar buat buba bubb bubs bubu buka bukk buku bur- bura burb burk burr burs burt buru busa busk buss bust busu but- buta buts butt buus kaaa kaab kaak kaar kaas kaat kaba kabb kabr kabu kaka kakk kaks kakt kaku kara karb kark karr kars kart karu kas- kasa kasb kask kasr kass kast kasu kat- kata katb katk katr kats katt katu kau- kaub kauk kaur kaus kbaa kbab kbak kbar kbas kbat kbba kbbb kbbk kbbr kbbs kbbt kbbu kbkb kbkk kbkr kbra kbrb kbrk kbrt kbru kbsa kbsb kbsk kbsr kbss kbst kbsu kbta kbtb kbtk kbtr kbts kbtt kbua kbub kbuk kbur kbus kbut kbuu kkaa kkar kkat kkba kkbb kkbr kkbs kkbt kkkk kkrb kkrk kkrr kkrs kkrt kksa kksr kkss kkst kksu kktk kkts kktu kkua kkus kkut kkuu krab krak krar kras krat krba krbb krbk krbr krbt krka krkk krkr krks krku krrb krrk krrr krrs krrt krsa krsk krsr krss krst krsu krta krtk krtr krts krua kruk krur ksab ksak ksar ksas ksat ksau ksba ksbr ksbs kska kskb kskk kskr ksks ksku ksra ksrb ksrr ksrs ksrt kssa kssr ksss ksst kssu ksta kstb kstk kstr ksts kstt kstu ksua ksub ksut ksuu ktaa ktak ktar ktas ktat ktba ktbb ktbr ktbt ktbu ktkb ktkk ktkr ktks ktkt ktku ktrb ktrk ktrr ktrs ktrt ktru ktsa ktsr ktst ktsu kttk kttr ktts kttt kttu ktub kuar kuat kuau kuba kubb kubr kubs kubu kuka kukk kuks kuku kura kurb kurk kurr kurs kurt kuru kusa kusb kust kusu kuta kutr kuts kutt kutu kuub kuuk kuur kuuu raab raak raas raat raba rabb rabk rabs rabu raka rakk rakt raku rara rarb rark rars rasa rask rass rast rasu rata ratk rats ratt ratu raua raub rauk raus raut rbbb rbbr rbbs rbss rbst rkss rkts rras rrat rrrr rsaa rssa rsts rstu rsua rtas rtss rtts ruas ruba rubb rubs rubu ruka rukk ruku rura rurs ruru rusa rusk russ rust rusu ruta ruts rutt rutu saab saak saar saas saat saba sabb sabr sabs sabu saka sakb sakk saks saku sara sark sarr sars sart saru sasa sask sass sast sata satb satr sats satt satu saua sauk saur saus saut sbaa sbar sbas sbbs sbrk sbsa sbst sbtk sbus skab skar skat skra skrt skss skua skur skut sras srta srtr srub ssaa ssab ssas ssat ssau ssbr ssra ssrs sssa sssb ssss ssta sstb ssts stab stak star stas stat stau stbs stks stra strk strs stru stss sttr stub stuk stur stus stut suar suas suat sub- suba subb subs suka suks suku sur-