a-a a-b a-i aaa aab aai aak aao aar aas ab- aba abb abi abk abo abr abs ai- aia aib aii aik aio air ais aka akb aki akk ako akr aks aoa aob aoi aok aoo aor aos ar- ara arb ari ark aro arr ars as- asa asb asi ask aso asr ass baa bab bai bak bao bar bas bba bbb bbi bbk bbo bbr bbs bi- bia bib bii bik bio bir bis bka bkb bkk bko bkr bks boa bob boi bok boo bor bos bra brb bri brk bro brr brs bsa bsb bsi bsk bso bsr bss ia- iaa iab iai iao iar ias iba ibb ibi ibk ibo ibr ibs iia iib iii iio iir iis ika ikb iki ikk iko ikr iks io- ioa iob ioi ioo ior ios ir- ira irb iri irk iro irr irs is- isa isb isi isk iso isr iss ka- kaa kab kai kak kao kar kas kba kbb kbi kbk kbo kbr kbs kia kib kii kik kio kir kis kkb kki kkk kkr kks koa kob koi kok koo kor kos kra kri krk kro krr krs ksa ksb ksi ksk kso ksr kss o-i oaa oab oai oak oao oar oas ob- oba obb obi obk obo obr obs oia oib oii oik oio oir ois oka okb oki okk oko okr oks oo- ooa oob ooi ook ooo oor oos or- ora orb ori ork oro orr ors os- osa osb osi osk oso osr oss ra- raa rab rai rak rao rar ras rba rbb rbi rbk rbo rbr rbs ria rib rii rik rio rir ris rkb rkk rko rks roa rob roi rok roo ror ros rra rrb rri rrk rrr rrs rsa rsb rsi rsk rso rsr rss saa sab sai sak sao sar sas sba sbb sbi sbk sbo sbr sbs sia sib sii sik sio sir sis sk- ska skb ski skk sko skr sks soa sob soi sok soo sor sos sr- sra srb sri srk sro srr srs ss- ssa ssb ssi ssk sso ssr sss

a-ak a-ii a-ok aaaa aaab aaai aaar aaas aaba aabb aabi aaib aaii aais aaka aaoo aara aari aaro aars aasa aasi aass abaa abab abai abak abar abas abb- abba abbb abbi abbo abbr abbs abia abib abir abis aboa abob abok aboo abor abos abra abri abro abrs abs- absa absi abss aiai aias aiba aibo aiia aiib aiir aika aiki aiko aiks aioi aira airi airo airs aisa aisb aisi aisk aiso aisr akaa akai akao akar akas akia akik akio akir akis akka akki akko akok akos akr- akra aksa aksi aoba aoki aoks aora aorb aors aoss arab arai arak arar aras arba arbi arbs aria arib arii arik ario aris arka arki arko arks aroa arob aroi aroo aror aros arr- arra arri arrk arro arrr arrs ars- arsa arsi arsk arso asaa asab asai asak asao asar asas asba asbo asia asii asik asio asir asis aska aski asko askr asks asob asoi asok asor asos asra asro asrs assa assi assk asso assr asss ba-i baaa baak baar baas baba babb babi babo babr babs baia baib baik baio bair bais bak- baka baki bako bakr baks baos bar- bara barb bari bark baro barr bars basa basi bask baso bass bbas bbbb bbbs biak biao biar bias biba bibb bibi bibo bibs biis biko bio- bioi bios bira birb biri birk biro birr birs bis- bisa bisk biso biss boab boai boak boar boas boba bobb bobi bobo bobs boi- boii bois boka boki boko boks boob book boor boos bor- bora bori bork boro borr bors bosa bosi bosk boso boss brab brai brak brao bras bria brik brio bris brka brkb broa brob brok broo bror bros brrr brrs brsb brsr bsaa bsas bsos bsra iaaa iaai iaas iaba iaia iais iara iars iasa iasi iask iaso iasr ibar ibas ibia ibis ibos ibra ibri ibro ibsa ibss iias iiii iiio iiis iioi iioo iios iira iirs iisi iisr ikar ikki ikko ikoo ikra ikri ioba iobi ioii ioio ioko iooi iooo ioos iora iori iors ioso irai irak irao irar iras iri- iria irio iris irka irki irks irob irra irri irrs irsa is-a isai isak isao isar isas isba isia isis iska isko iso- isok isor isos isra isri issa issi isso issr isss k-os kaaa kaab kaai kaak kaar kaas kaba kabb kabi kabo kabr kaia kaib kaii kaik kaio kair kais kaka kaki kakk kako kaks kaoa kaoi kaok kaor kaos kara karb kari kark karo karr kars kas- kasa kasb kasi kask kaso kasr kass kbaa kbab kbai kbak kbar kbas kbba kbbb kbbi kbbk kbbo kbbr kbbs kbia kbib kbik kbio kbis kbkb kbkk kbko kbkr kboa kbob kboi kbok kboo kbos kbra kbrb kbri kbrk kbro kbsa kbsb kbsi kbsk kbso kbsr kbss kiab kiai kiar kias kiba kibb kibi kibo kibr kibs kiia kiii kiik kiis kika kiki kikk kiko kikr kioa kioi kiok kioo kira kirb kiri kirk kiro kirr kirs kisa kisi kisk kiso kisr kiss kkaa kkai kkar kkba kkbb kkbi kkbo kkbr kkbs kkia kkik kkkk kkoa kkob kkoo kkor kkrb kkrk kkro kkrr kkrs kksa kksi kksr kkss koab koai koak koar koas koba kobb kobi kobk kobo kobr kobs koii koir koka kokb koki kokk koko kokr koks koob kooi kook kooo koor koos kora korb kori kork koro korr kors kos- kosa kosb kosi koso kosr koss krab krai krak krar kras krba krbb krbi krbk krbr kria krib krik krio kris krka krki krkk krko krkr krks kroa krob kroi krok kroo kror kros krrb krri krrk krro krrr krrs krsa krsk krsr krss ksab ksak ksar ksas ksba ksbi ksbr ksbs ksib ksii ksik ksir ksis kska kskb kskk ksko kskr ksks ksob ksoi ksok ksoo ksor ksos ksra ksrb ksro ksrr ksrs kssa kssi ksso kssr ksss