a-a a-b a-i a-t aaa aab aai aak aao aar aat ab- aba abb abi abk abo abr abt ai- aia aib aii aik aio air ait aka akb aki akk ako akr aoa aob aoi aok aoo aor aot ar- ara arb ari ark aro arr art at- ata atb ati ato atr att baa bab bai bak bao bar bat bba bbb bbi bbk bbo bbr bbt bi- bia bib bii bik bio bir bit bka bkb bkk bko bkr bkt boa bob boi bok boo bor bot bra brb bri brk bro brr brt bta btb bti btk bto btr btt ia- iaa iab iai iao iar iat iba ibb ibi ibk ibo ibr ibt iia iib iii iio iir iit ika ikb iki ikk iko ikr ikt io- ioa iob ioi ioo ior iot ir- ira irb iri irk iro irr irt ita itb iti itk ito itt k-t ka- kaa kab kai kak kao kar kat kba kbb kbi kbk kbo kbr kia kib kii kik kio kir kit kkb kki kkk kkr kkt koa kob koi kok koo kor kot kra kri krk kro krr krt kta ktb ktk kto ktr ktt o-i oaa oab oai oak oao oar oat ob- oba obb obi obk obo obr obt oia oib oii oik oio oir oit oka okb oki okk oko okr oo- ooa oob ooi ook ooo oor oot or- ora orb ori ork oro orr ort ot- ota otb oti otk oto otr ott ra- raa rab rai rak rao rar rat rba rbb rbi rbk rbo rbr rbt ria rib rii rik rio rir rit rkb rkk rko rkt roa rob roi rok roo ror rot rra rrb rri rrk rrr rrt rta rtb rti rtk rto rtr rtt taa tab tai tak tao tar tat tba tbb tbi tbk tbo tbr tbt tia tib tii tik tio tir tit tka tkb tkk tko tkr tkt to- toa tob toi tok too tor tot tra trb tri trk tro trr trt tta ttb tti ttk tto ttr ttt

a-ak a-ii a-ok aaaa aaab aaai aaar aaba aabb aabi aabt aaib aaii aaka aaoo aara aari aaro aart aata aatk aatt abaa abab abai abak abar abat abb- abba abbb abbi abbo abbr abbt abia abib abir abit aboa abob abok aboo abor abot abra abri abro abta aiai aiba aibo aiia aiib aiir aika aiki aiko aioi aira airi airo airt aita aiti aitr aitt akaa akai akao akar akia akik akio akir akka akki akko akok akot akr- akra aoba aoki aora aorb aort arab arai arak arar arat arba arbi aria arib arii arik ario arit arka arki arko aroa arob aroi aroo aror arr- arra arri arrk arro arrr arrt arta arti arto artr at-t ataa atab atai atak atar atat atia atik atit atka atkt atob atoi atok ator atot atra atri atrk atro atta atti atto attr ba-i baaa baak baar baat baba babb babi babo babr baia baib baik baio bair bait bak- baka baki bako bakr bakt bar- bara barb bari bark baro barr bart bata bati bato batt bbbb biak biao biar biat biba bibb bibi bibo biko bio- bioi biot bira birb biri birk biro birr birt bita bito bitt boab boai boak boar boat boba bobb bobi bobo boi- boii boit boka boki boko boob book boor boot bor- bora bori bork boro borr bort bota botb boti boto bott brab brai brak brao brat bria brik brio brit brka brkb broa brob brok broo bror brot brrr btaa btob btor btrt bttb iaaa iaai iaat iaba iaia iara iart iata iati ibar ibat ibia ibot ibra ibri ibro ibtb iiii iiio iiit iioi iioo iira iita iitr iitt ikar ikat ikki ikko ikoo ikra ikri ioba iobi ioii ioio ioit ioko iooi iooo iora iori iota ioto irai irak irao irar iri- iria irio irka irki irob irra irri irta irti itaa itai itak itar itat itia itko itoi itoo itor itra itri itta itto kaaa kaab kaai kaak kaar kaat kaba kabb kabi kabo kabr kaia kaib kaii kaik kaio kair kait kaka kaki kakk kako kakt kaoa kaoi kaok kaor kara karb kari kark karo karr kart kat- kata katb kati katk kato katr katt kbaa kbab kbai kbak kbar kbat kbba kbbb kbbi kbbk kbbo kbbr kbbt kbia kbib kbik kbio kbit kbkb kbkk kbko kbkr kboa kbob kboi kbok kboo kbot kbra kbrb kbri kbrk kbro kbrt kbta kbtb kbtk kbto kbtr kbtt kiab kiai kiar kiba kibb kibi kibo kibr kibt kiia kiii kiik kiit kika kiki kikk kiko kikr kikt kioa kioi kiok kioo kiot kira kirb kiri kirk kiro kirr kirt kita kiti kito kitr kitt kkaa kkai kkar kkat kkba kkbb kkbi kkbo kkbr kkbt kkia kkik kkit kkkk kkoa kkob kkoo kkor kkot kkrb kkrk kkro kkrr kkrt kktk koab koai koak koar koba kobb kobi kobk kobo kobr koii koir koit koka kokb koki kokk koko kokr koob kooi kook kooo koor koot kora korb kori kork koro korr kort kota kotb koti kotk koto kotr kott krab krai krak krar krat krba krbb krbi krbk krbr krbt kria krib krik krio krit krka krki krkk krko krkr kroa krob kroi krok kroo kror krrb krri krrk krro krrr krrt krta krti krtk krto krtr ktaa ktai ktak ktao ktar ktat ktba ktbb ktbr ktbt ktia ktib ktik ktkb ktkk ktko ktkr ktkt ktob ktok ktoo ktor ktot ktrb ktri ktrk ktro ktrr ktrt ktti kttk ktto kttr kttt oara obai obak obba obbo obia obit obkb oboi obok obor obot obra obri obro oiba oiii oiko oira oirt oita oiti okak okia okir okka okko okok okor okot okra okro okta okto ooaa ooak ooba oobi ooia oooo oora oort ootb orab orai orak orao orar orat orba orbb orbi orbo ori- oria orio orit orka orko oro- orok oror orot orra orri orro orta orto otak otar otit oto-