a-a a-b aaa aab aad aak aar aas aau ab- aba abb abd abk abr abs abu ad- ada adb add adk adr ads adu aka akb akd akk akr aks aku ar- ara arb ard ark arr ars aru as- asa asb asd ask asr ass asu au- aua aub aud auk aur aus b-u baa bab bad bak bar bas bau bba bbb bbd bbk bbr bbs bbu bda bdb bdd bdk bdr bds bdu bka bkb bkk bkr bks bra brb brd brk brr brs bru bsa bsb bsd bsk bsr bss bsu bua bub bud buk bur bus buu daa dab dad dak dar das dau dba dbb dbd dbk dbr dbs dbu dda ddb ddd ddk ddr dds ddu dka dkb dkk dkr dks dku dra drb drd drk drr drs dru dsa dsb dsd dsk dsr dss dsu dua dub dud duk dur dus ka- kaa kab kad kak kar kas kau kba kbb kbd kbk kbr kbs kbu kda kdb kdk kdr kds kdu kkb kkk kkr kks kku kra krd krk krr krs kru ksa ksb ksd ksk ksr kss ksu kub kud kuk kur kus kuu ra- raa rab rad rak rar ras rau rba rbb rbd rbk rbr rbs rbu rda rdb rdd rdr rds rdu rkb rkk rks rku rra rrb rrd rrk rrr rrs rru rsa rsb rsd rsk rsr rss rsu rua rub rud ruk rur rus ruu saa sab sad sak sar sas sau sba sbb sbd sbk sbr sbs sbu sda sdb sdd sdk sdr sds sdu sk- ska skb skd skk skr sks sku sr- sra srb srd srk srr srs ss- ssa ssb ssd ssk ssr sss ssu sua sub sud suk sur sus suu ua- uaa uab uad uak uar uas uau uba ubb ubk ubr ubs ubu uda udb udd udk udr uds udu uka ukb ukk ukr uku ur- ura urb urd urk urr urs uru usa usb usd usk usr uss usu uua uur uus uuu

a-ak aaaa aaab aaad aaar aaas aaba aabb aabd aada aads aadu aaka aaku aara aard aars aaru aasa aasd aass aasu aaus abaa abab abad abak abar abas abau abb- abba abbb abbr abbs abda abdu abra abrs abs- absa absd abss absu abua abud abuk abus adaa adab adad adak adar adas adba adda addd addr adds addu adra adrs adsa adsr adss adua adub aduk adur akaa akar akas akka akku akr- akra aksa aksu akua arab arad arak arar aras arau arba arbs arda ards ardu arka arks arr- arra arrk arrr arrs arru ars- arsa arsd arsk arsu arua arub arud asaa asab asad asak asar asas asau asba asbu asda asds aska askr asks asra asrs asru assa assd assk assr asss assu asub asud asur asus auaa auks aur- aura aurd ausa ausd ausu baaa baad baak baar baas baba babb babr babs babu bada badb badd badr bads badu bak- baka bakr baks baku bar- bara barb bard bark barr bars baru basa bask bass basu bau- baud bauk baur bbad bbas bbau bbbb bbbs bbdd bd-r bdsd brab brad brak bras brau brda brds brka brkb brrr brrs brsb brsr brud brus bsaa bsas bsbd bsra bsrd bssd buad buar buba bubb bubs bubu buda budb budd buds budu buka bukk buku bur- bura burb burd burk burr burs buru busa busk buss busu buus daab daad daar daas daau daba dabb dabs dabu dada dads dadu daka daks daku dara darb dard dark darr dars daru dasa dasb dasd dask dass daub daud dauk daur daus dbar dbas dbrs dbsa dbss dbus dddd ddss ddub dkba draa drab drad drak drar dras drau drba drda drra drrs drsa drua drub druk drus druu dsba dsda dsdr dsrr dssa duaa duab duad duar duas dub- duba dubb dubs dubu duda dudd duds dudu duka duku dura durk duru dusa dusk duur kaaa kaab kaak kaar kaas kaba kabb kabd kabr kabu kad- kada kadd kadr kads kadu kaka kakk kaks kaku kara karb kard kark karr kars karu kas- kasa kasb kask kasr kass kasu kau- kaub kaud kauk kaur kaus kbaa kbab kbad kbak kbar kbas kbba kbbb kbbd kbbk kbbr kbbs kbbu kbdb kbdr kbds kbkb kbkk kbkr kbra kbrb kbrd kbrk kbru kbsa kbsb kbsk kbsr kbss kbsu kbua kbub kbud kbuk kbur kbus kbuu kdaa kdab kdad kdak kdar kdbb kdbr kdbs kddb kddd kddk kddr kdka kdkb kdkd kdkk kdkr kdrb kdrs kdsd kdsk kdsr kdss kdsu kdub kdur kdus kkaa kkar kkba kkbb kkbd kkbr kkbs kkda kkdd kkkk kkrb kkrk kkrr kkrs kksa kksd kksr kkss kksu kkua kkus kkuu krab krad krak krar kras krba krbb krbd krbk krbr krda krdd krdr krds krdu krka krkd krkk krkr krks krku krrb krrk krrr krrs krsa krsd krsk krsr krss krsu krua kruk krur ksab ksak ksar ksas ksau ksba ksbr ksbs ksdk ksdr ksds kska kskb kskd kskk kskr ksks ksku ksra ksrb ksrr ksrs kssa kssr ksss kssu ksua ksub ksud ksuu kuar kuau kuba kubb kubd kubr kubs kubu kuda kudd kudu kuka kukk kuks kuku kura kurb kurd kurk kurr kurs kuru kusa kusb kusd kusu kuub kuuk kuur kuuu raab raad raak raas raba rabb rabk rabs rabu rada radd radr rads radu raka rakk raku rara rarb rark rars rasa rasd rask rass rasu raua raub raud rauk raus rbbb rbbr rbbs rbds rbsd rbss rdas rkss rrad rras rrrr rsaa rsdd rsds rssa rsua ruad ruas ruba rubb rubs rubu ruda rudd ruds ruka rukk ruku rura rurd rurs ruru rusa rusk russ rusu ruud saab saad saak saar saas saba sabb sabr sabs sabu sada sadb sadd sadr sads sadu saka sakb sakk saks saku sara sard sark sarr sars saru sasa sasd sask sass saua saud sauk saur saus sbaa sbar sbas sbbs sbds sbrk sbsa sbsd sbus sdak sdau sdba sdds sdrs sdss sdsu skab skad skar