a-a a-b a-i aaa aab aad aai aak aao aar ab- aba abb abd abi abk abo abr ad- ada adb add adi adk ado adr ai- aia aib aid aii aik aio air aka akb akd aki akk ako akr aoa aob aod aoi aok aoo aor ar- ara arb ard ari ark aro arr baa bab bad bai bak bao bar bba bbb bbd bbi bbk bbo bbr bda bdb bdd bdi bdk bdo bdr bi- bia bib bid bii bik bio bir bka bkb bkk bko bkr boa bob bod boi bok boo bor bra brb brd bri brk bro brr daa dab dad dai dak dao dar dba dbb dbd dbi dbk dbo dbr dda ddb ddd ddi ddk ddo ddr di- dia dib did dii dik dio dir dka dkb dki dkk dko dkr doa dob dod doi dok doo dor dra drb drd dri drk dro drr i-d ia- iaa iab iad iai iao iar iba ibb ibd ibi ibk ibo ibr ida idb idd idi idk ido idr iia iib iid iii iio iir ika ikb iki ikk iko ikr io- ioa iob iod ioi ioo ior ir- ira irb ird iri irk iro irr ka- kaa kab kad kai kak kao kar kba kbb kbd kbi kbk kbo kbr kda kdb kdk kdo kdr kia kib kid kii kik kio kir kkb kki kkk kkr koa kob kod koi kok koo kor kra krd kri krk kro krr o-i oaa oab oad oai oak oao oar ob- oba obb obd obi obk obo obr oda odb odd odi odo odr oia oib oid oii oik oio oir oka okb okd oki okk oko okr oo- ooa oob ood ooi ook ooo oor or- ora orb ord ori ork oro orr ra- raa rab rad rai rak rao rar rba rbb rbd rbi rbk rbo rbr rda rdb rdd rdi rdo rdr ria rib rid rii rik rio rir rkb rkk rko roa rob rod roi rok roo ror rra rrb rrd rri rrk rrr

a-ak a-do a-ii a-ok aaaa aaab aaad aaai aaar aaba aabb aabd aabi aada aadi aaib aaii aaka aaoo aara aard aari aaro abaa abab abad abai abak abar abb- abba abbb abbi abbo abbr abda abdi abdo abia abib abid abir aboa abob abod abok aboo abor abra abri abro adaa adab adad adai adak adao adar adba adbi adda addd addi addo addr adia adib adik adio adir adki adob adod adok adoo ador adra adro aiai aiba aibo aida aidb aidi aidr aiia aiib aiid aiir aika aiki aiko aioi aira aird airi airo akaa akai akao akar akia akid akik akio akir akka akki akko akok akr- akra aoba aoki aora aorb arab arad arai arak arar arba arbi arda ardi ardo aria arib arid arii arik ario arka arki arko aroa arob arod aroi aroo aror arr- arra arri arrk arro arrr ba-i baaa baad baak baar baba babb babi babo babr bada badb badd badi bado badr baia baib baid baik baio bair bak- baka baki bako bakr bar- bara barb bard bari bark baro barr bbad bbbb bbdd bbdo bd-r bdii biad biak biao biar biba bibb bibi bibo bida bidi bido bidr biko bio- bioi bira birb bird biri birk biro birr boab boad boai boak boar boba bobb bobi bobo boda bodb bodi bodo boi- boid boii boka boki boko boob bood book boor bor- bora bord bori bork boro borr brab brad brai brak brao brda brdo bria brid brik brio brka brkb broa brob brod brok broo bror brrr d-bo daab daad daar daba dabb dabo dada dadi dado daia daid daik daio dair daka daki dako dara darb dard dari dark daro darr dbar dddd dia- diab diad diak diao diar diba dibb dibo dida didi dido diii dika diki diko dior dira dird dirk dirr dkba dkid doab doak doar doba dobb dobi dod- doda dodd dodi dodo doid doka doki doko doob dood dook door dora dord dori dork doro dorr draa drab drad drak drar drba drda drib drob drod drra iaaa iaai iaba iadb iaia iara ibad ibar ibdo ibia ibid ibra ibrd ibri ibro idad idar idda iddo idia idid idio idir idra idro iida iiii iiio iioi iioo iira ikar ikid ikki ikko ikoo ikra ikri ioba iobi iod- ioda iodd iodo ioii ioio ioko iooi iooo iora iori irad irai irak irao irar irda irdo iri- iria irid irio irka irki irob irod irra irri k-id kaaa kaab kaai kaak kaar kaba kabb kabd kabi kabo kabr kad- kada kadd kadi kado kadr kaia kaib kaid kaii kaik kaio kair kaka kaki kakk kako kaoa kaoi kaok kaor kara karb kard kari kark karo karr kbaa kbab kbad kbai kbak kbar kbba kbbb kbbd kbbi kbbk kbbo kbbr kbdb kbdi kbdo kbdr kbia kbib kbid kbik kbio kbkb kbkk kbko kbkr kboa kbob kbod kboi kbok kboo kbra kbrb kbrd kbri kbrk kbro kdaa kdab kdad kdai kdak kdao kdar kdbb kdbi kdbr kddb kddd kddi kddk kddr kdia kdio kdka kdkb kdkd kdkk kdko kdkr kdok kdrb kdri kdro kiab kiad kiai kiar kiba kibb kibi kibo kibr kida kidb kidd kidi kidk kido kidr kiia kiid kiii kiik kika kikd kiki kikk kiko kikr kioa kiod kioi kiok kioo kira kirb kiri kirk kiro kirr kkaa kkai kkar kkba kkbb kkbd kkbi kkbo kkbr kkda kkdd kkdo kkia kkid kkik kkkk kkoa kkob kkoo kkor kkrb kkrk kkro kkrr koab koai koak koar koba kobb kobi kobk kobo kobr koda kodi kodk kodo koii koir koka kokb koki kokk koko kokr koob kooi kook kooo koor kora korb kord kori kork koro korr krab krad krai krak krar krba krbb krbd krbi krbk krbr krda krdd krdo krdr kria krib krid krik krio krka krkd krki krkk krko krkr kroa krob krod kroi krok kroo kror krrb krri krrk krro krrr oara obad obai obak obba obbo