a-ak a-ok aaaa aaab aaar aaba aabb aaka aaku aaoo aara aaro aaru abaa abab abak abar abau abb- abba abbb abbo abbr aboa abob abok aboo abor abou abra abro abua abuk abza abzu akaa akao akar akka akko akku akok akr- akra akua aoba aora aorb arab arak arar arau arba arka arko aroa arob aroo aror aroz arr- arra arrk arro arrr arru arua arub arza arzo arzu auaa aur- aura auro aza- azab azar azaz azo- azoo azor azra azua azur azza azzo baaa baak baar baaz baba babb babo babr babu bak- baka bako bakr baku bar- bara barb bark baro barr baru barz bau- bauk baur baza bazo bbau bbbb boab boak boar boaz boba bobb bobo bobu boka boko boku boob book boor booz bor- bora bork boro borr boru borz boua bouk bour boza bozo brab brak brao brau braz brka brkb broa brob brok broo bror brou broz brrr bruz brza buar buba bubb bubo bubu buka bukk buko buku bur- bura burb burk buro burr buru burz buuz buza buzz bzou bzrk bzzz kaaa kaab kaak kaar kaba kabb kabo kabr kabu kabz kaka kakk kako kaku kaoa kaok kaor kara karb kark karo karr karu karz kau- kaub kauk kauo kaur kauz kaza kazo kazr kazu kazz kbaa kbab kbak kbar kbaz kbba kbbb kbbk kbbo kbbr kbbu kbbz kbkb kbkk kbko kbkr kbkz kboa kbob kbok kboo kboz kbra kbrb kbrk kbro kbru kbrz kbua kbub kbuk kbur kbuu kbuz kbzo kbzu kbzz kkaa kkar kkba kkbb kkbo kkbr kkbz kkkk kkoa kkob kkoo kkor kkoz kkrb kkrk kkro kkrr kkrz kkua kkuu kkzu kkzz koab koak koar koaz koba kobb kobk kobo kobr kobu koka kokb kokk koko kokr koku kokz koob kook kooo koor koou kooz kora korb kork koro korr koru koua koub kour kouu koza kozb kozk kozo kozr kozu krab krak krar kraz krba krbb krbk krbr krbz krka krkk krko krkr krku krkz kroa krob krok kroo kror kroz krrb krrk krro krrr krrz krua kruk krur kruz krza krzk krzr krzz kuar kuau kuaz kuba kubb kubo kubr kubu kuka kukk kuku kuoa kuok kuoo kura kurb kurk kuro kurr kuru kurz kuub kuuk kuur kuuu kuuz kuzu kuzz kzar kzaz kzbb kzbk kzbr kzbz kzkr kzkz kzoo kzor kzoz kzrb kzrk kzro kzrr kzrz kzua kzuu kzuz kzza kzzb kzzk kzzo kzzr kzzz oaau oara obak obba obbo obkb obok obor obra obro okak okaz okka okko okok okor okra okro okur ooaa ooak ooba ooku oooo oora orab orak orao orar orba orbb orbo orbu orka orko oro- orok oror oroz orra orro orub orzk orzo orzu our- oura ouro ouu- ouza ouzo ozar raab raak raaz raba rabb rabk rabo rabu raka rakk raku raob raok rara rarb rark raro rarz raua raub rauk raza razo razr razz rbbb rbbr roab roak roar rob- roba robb robo robu roka rokk roko rokr roku roob rook roor rooz rora rork roro roru roua roub rouk rouz roza rozz rrrr ruba rubb rubu ruka rukk ruku ruok rura ruro ruru ruza rzab rzka uaru uaua ubar ubba ubbo ubra ukaz ukba ukko ukok ukra ukur uor- urao urau urba urka uro- uroa urok uroo urra uruk urur uruz urza uuuu uzak z-ro zaar zaba zabo zabr zabu zaka zakk zaku zara zarb zark zaro zarr zaru zaur zaza zazu zbar zoar zobo zoku zoo- zook zora zorb zork zoro zouk zoza zozo zozu zubo zubr zubu zuko zukr zuoz zura zurb zurr zuru zuuk zuzu zzzz