a-a a-b aaa aab aak aao aar aas aau aav ab- aba abb abk abo abr abs abu abv aka akb akk ako akr aks aku akv aoa aob aok aoo aor aos aou aov ar- ara arb ark aro arr ars aru arv as- asa asb ask aso asr ass asu asv au- aua aub auk auo aur aus auv av- ava avb avk avo avr avs avu b-u baa bab bak bao bar bas bau bav bba bbb bbk bbo bbr bbs bbu bka bkb bkk bko bkr bks bkv boa bob bok boo bor bos bou bov bra brb brk bro brr brs bru brv bsa bsb bsk bso bsr bss bsu bsv bua bub buk buo bur bus buu bva bvb bvk bvo bvr bvs bvu bvv ka- kaa kab kak kao kar kas kau kav kba kbb kbk kbo kbr kbs kbu kkb kkk kkr kks kku kkv koa kob kok koo kor kos kou kra krk kro krr krs kru krv ksa ksb ksk kso ksr kss ksu ksv kub kuk kur kus kuu kva kvb kvk kvo kvr kvs kvv oaa oab oak oao oar oas oau oav ob- oba obb obk obo obr obs obu obv oka okb okk oko okr oks oku oo- ooa oob ook ooo oor oos oov or- ora orb ork oro orr ors oru orv os- osa osb osk oso osr oss osu osv ou- oua ouk ouo our ous ov- ova ovb ovo ovs ovv ra- raa rab rak rao rar ras rau rav rba rbb rbk rbo rbr rbs rbu rkb rkk rko rks rku rkv roa rob rok roo ror ros rou rov rra rrb rrk rrr rrs rru rsa rsb rsk rso rsr rss rsu rsv rua rub ruk ruo rur rus ruu ruv rva rvb rvo rvr rvs rvu rvv saa sab sak sao sar sas sau sav sba sbb sbk sbo sbr sbs sbu sbv sk- ska skb skk sko skr sks sku soa sob sok soo sor sos sou sov sr- sra srb srk sro srr srs srv ss- ssa ssb ssk sso ssr sss ssu ssv sua sub suk suo sur sus suu suv sva svb svk svo svr svs svu svv ua- uaa uab uak uao uar uas uau uav uba ubb ubk ubo ubr ubs ubu ubv uka ukb ukk ukr uku uoa uob uok uoo uor uos ur- ura urb urk uro urr urs uru usa usb usk uso usr uss usu usv uua uur uus uuu uva uvb uvo uvs uvu uvv v-a vaa vab vak vao var vas vau vav vba vbk vbo vbr vbs vbv vka vkb voa vob vok voo vor vos vou vov vra vrb vrk vrr vrs vru vsa vsb vsk vso vsr vss vsu vsv vuk vur vus vuv vva vvb vvo vvr vvs vvv

-ous a-ak a-ok aaaa aaab aaar aaas aaav aaba aabb aaka aaku aaoo aara aaro aars aaru aasa aass aasu aaus aava abaa abab abak abar abas abau abb- abba abbb abbo abbr abbs aboa abob abok aboo abor abos abou abov abra abro abrs abs- absa abss absu abua abuk abus abva akaa akao akar akas akka akko akku akok akos akr- akra aksa aksu akua aoba aoks aora aorb aors aoss aous arab arak arar aras arau arba arbs arka arko arks aroa arob aroo aror aros arr- arra arrk arro arrr arrs arru ars- arsa arsk arso arsu arua arub arva arvo asaa asab asak asao asar asas asau asba asbo asbu aska asko askr asks asob asok asor asos asou asra asro asrs asru assa assk asso assr asss assu asub asur asus asva asvs auaa auks aur- aura auro ausa ausu auvs avab avao avar avas avor avos avou avra avro avur avus avva avvo baaa baak baar baas baba babb babo babr babs babu bak- baka bako bakr baks baku baos bar- bara barb bark baro barr bars baru basa bask baso bass basu bau- bauk baur bava bavu bbas bbau bbbb bbbs boab boak boar boas boba bobb bobo bobs bobu boka boko boks boku boob book boor boos bor- bora bork boro borr bors boru bosa bosk boso boss bosu boua bouk bour bous bova bovo brab brak brao bras brau brav brka brkb broa brob brok broo bror bros brou brrr brrs brsb brsr brus bruv bsaa bsas bsos bsra buar buba bubb bubo bubs bubu buka bukk buko buku bur- bura burb burk buro burr burs buru busa busk buss busu buus k-os kaaa kaab kaak kaar kaas kaba kabb kabo kabr kabu kaka kakk kako kaks kaku kaoa kaok kaor kaos kara karb kark karo karr kars karu karv kas- kasa kasb kask kaso kasr kass kasu kau- kaub kauk kauo kaur kaus kava kavb kavo kavs kavu kavv kbaa kbab kbak kbar kbas kbba kbbb kbbk kbbo kbbr kbbs kbbu kbkb kbkk kbko kbkr kbkv kboa kbob kbok kboo kbos kbov kbra kbrb kbrk kbro kbru kbrv kbsa kbsb kbsk kbso kbsr kbss kbsu kbsv kbua kbub kbuk kbur kbus kbuu kbva kbvb kbvo kbvr kbvu kkaa kkar kkba kkbb kkbo kkbr kkbs kkkk kkoa kkob kkoo kkor kkov kkrb kkrk kkro kkrr kkrs kkrv kksa kksr kkss kksu kkua kkus kkuu kkvr kkvu kkvv koab koak koar koas koba kobb kobk kobo kobr kobs kobu koka kokb kokk koko kokr koks koku koob kook kooo koor koos koou koov kora korb kork koro korr kors koru korv kos- kosa kosb koso kosr koss kosu koua koub kour kous kouu kova kovk kovo kovr krab krak krar kras krav krba krbb krbk krbr krka krkk krko krkr krks krku krkv kroa krob krok kroo kror kros krov krrb krrk krro krrr krrs krsa krsk krsr krss krsu krsv krua kruk krur krva krvb krvk krvo krvr krvs krvv ksab ksak ksar ksas ksau ksav ksba ksbr ksbs ksbv kska kskb kskk ksko kskr ksks ksku ksob ksok ksoo ksor ksos ksou ksra