a-a a-b aaa aab aak aao aar aau aav ab- aba abb abk abo abr abu abv aka akb akk ako akr aku akv aoa aob aok aoo aor aou aov ar- ara arb ark aro arr aru arv au- aua aub auk auo aur auv av- ava avb avk avo avr avu b-u baa bab bak bao bar bau bav bba bbb bbk bbo bbr bbu bka bkb bkk bko bkr bkv boa bob bok boo bor bou bov bra brb brk bro brr bru brv bua bub buk buo bur buu bva bvb bvk bvo bvr bvu bvv ka- kaa kab kak kao kar kau kav kba kbb kbk kbo kbr kbu kkb kkk kkr kku kkv koa kob kok koo kor kou kra krk kro krr kru krv kub kuk kur kuu kva kvb kvk kvo kvr kvv oaa oab oak oao oar oau oav ob- oba obb obk obo obr obu obv oka okb okk oko okr oku oo- ooa oob ook ooo oor oov or- ora orb ork oro orr oru orv ou- oua ouk ouo our ov- ova ovb ovo ovv ra- raa rab rak rao rar rau rav rba rbb rbk rbo rbr rbu rkb rkk rko rku rkv roa rob rok roo ror rou rov rra rrb rrk rrr rru rua rub ruk ruo rur ruu ruv rva rvb rvo rvr rvu rvv ua- uaa uab uak uao uar uau uav uba ubb ubk ubo ubr ubu ubv uka ukb ukk ukr uku uoa uob uok uoo uor ur- ura urb urk uro urr uru uua uur uuu uva uvb uvo uvu uvv v-a vaa vab vak vao var vau vav vba vbk vbo vbr vbv vka vkb voa vob vok voo vor vou vov vra vrb vrk vrr vru vuk vur vuv vva vvb vvo vvr vvv

a-ak a-ok aaaa aaab aaar aaav aaba aabb aaka aaku aaoo aara aaro aaru aava abaa abab abak abar abau abb- abba abbb abbo abbr aboa abob abok aboo abor abou abov abra abro abua abuk abva akaa akao akar akka akko akku akok akr- akra akua aoba aora aorb arab arak arar arau arba arka arko aroa arob aroo aror arr- arra arrk arro arrr arru arua arub arva arvo auaa aur- aura auro avab avao avar avor avou avra avro avur avva avvo baaa baak baar baba babb babo babr babu bak- baka bako bakr baku bar- bara barb bark baro barr baru bau- bauk baur bava bavu bbau bbbb boab boak boar boba bobb bobo bobu boka boko boku boob book boor bor- bora bork boro borr boru boua bouk bour bova bovo brab brak brao brau brav brka brkb broa brob brok broo bror brou brrr bruv buar buba bubb bubo bubu buka bukk buko buku bur- bura burb burk buro burr buru kaaa kaab kaak kaar kaba kabb kabo kabr kabu kaka kakk kako kaku kaoa kaok kaor kara karb kark karo karr karu karv kau- kaub kauk kauo kaur kava kavb kavo kavu kavv kbaa kbab kbak kbar kbba kbbb kbbk kbbo kbbr kbbu kbkb kbkk kbko kbkr kbkv kboa kbob kbok kboo kbov kbra kbrb kbrk kbro kbru kbrv kbua kbub kbuk kbur kbuu kbva kbvb kbvo kbvr kbvu kkaa kkar kkba kkbb kkbo kkbr kkkk kkoa kkob kkoo kkor kkov kkrb kkrk kkro kkrr kkrv kkua kkuu kkvr kkvu kkvv koab koak koar koba kobb kobk kobo kobr kobu koka kokb kokk koko kokr koku koob kook kooo koor koou koov kora korb kork koro korr koru korv koua koub kour kouu kova kovk kovo kovr krab krak krar krav krba krbb krbk krbr krka krkk krko krkr krku krkv kroa krob krok kroo kror krov krrb krrk krro krrr krua kruk krur krva krvb krvk krvo krvr krvv kuar kuau kuba kubb kubo kubr kubu kuka kukk kuku kuoa kuok kuoo kura kurb kurk kuro kurr kuru kurv kuub kuuk kuur kuuu kuva kuvo kuvr kvab kvak kvar kvbr kvoa kvob kvok kvoo kvor kvou kvov kvra kvro kvrr kvrv kvuu kvvr kvvv oaau oara obak obba obbo obkb obok obor obra obro okak okka okko okok okor okra okro okur ooaa ooak ooba ooku oooo oora orab orak orao orar orav orba orbb orbo orbu orka orko oro- orok oror orra orro orub orvr our- oura ouro ouu- ovar ovo- ovoo ovra raab raak raba rabb rabk rabo rabu raka rakk raku raob raok rara rarb rark raro raua raub rauk rava rbbb rbbr roab roak roar rob- roba robb robo robu roka rokk roko rokr roku roob rook roor rora rork roro roru roua roub rouk rova rovo rrrr ruba rubb rubu ruka rukk ruku ruok rura ruro ruru ruvu uaru uaua ubar ubba ubbo ubra ukba ukko ukok ukra ukur uor- uovo urao urau urba urka uro- uroa urok uroo urra uruk urur urva uuuu uv-a uv-b uvaa uvok uvvu vaar vaka vara vark varr varu vava vkor voar voka voor vor- vora voro voru vouk vour vovk vrak vrav vrba vruk vuka vuku vurb vvob vvvv

-aaa- aabaa aabba aabra aakko aarau abaab ababa ababu abaka abako abara abaru abava abbar abbou abbur abkar abkoo aboab abobo abook abora abovo abrak abrar abuko abura aburr akaba akabo akaoa akbar akbou akbuk akkra akkub akkur akobo akoka akoko akova akrak akrar akro- akuku akura ar-ab arab- araba arabo araku arara araru arava aravu arbab arbar arbok arbor arkar aroab aroar aroba aroor arora arrak arrau arrou arrua aruaa aruba arura aruru aruvu arvak arvar aukra aurar auro- auroa auror aurra aurva avara avaro avour avouu b-r-k baava babak babar babau babka baboo babou babra babur bakar bakau bakka bakoa bakov bakra bakur baoro baraa barab barak barao barar barba barbu bark- barka baro- baroa barok baroo baror barra barro barru barua barva baubo baura bauru bavar bavra bbook bo-bo boaro bobak bobar bobko bobok bobov bobr bokaa bokko bokok bokor bokov booba booko boora booru borak borau borba borbo borka borko borku