a-a a-b a-i aaa aab aad aaf aai aak aao aar ab- aba abb abd abf abi abk abo abr ad- ada adb add adf adi adk ado adr af- afa afb afd aff afi afk afo afr ai- aia aib aid aif aii aik aio air aka akb akd aki akk ako akr aoa aob aod aof aoi aok aoo aor ar- ara arb ard arf ari ark aro arr baa bab bad baf bai bak bao bar bba bbb bbd bbf bbi bbk bbo bbr bda bdb bdd bdf bdi bdk bdo bdr bfa bfb bfd bff bfi bfo bfr bi- bia bib bid bif bii bik bio bir bka bkb bkf bkk bko bkr boa bob bod bof boi bok boo bor bra brb brd brf bri brk bro brr daa dab dad daf dai dak dao dar dba dbb dbd dbf dbi dbk dbo dbr dda ddb ddd ddf ddi ddk ddo ddr dfa dfb dfd dff dfi dfk dfo dfr di- dia dib did dif dii dik dio dir dka dkb dki dkk dko dkr doa dob dod dof doi dok doo dor dra drb drd dri drk dro drr faa fab fad faf fai fak fao far fba fbb fbd fbf fbi fbk fbo fbr fda fdb fdd fdf fdi fdk fdo fdr ffa ffd fff ffi ffk ffo ffr fia fib fid fif fii fik fir fka fkb fkf fki fkk foa fob fof foi fok foo for fra frb frd frf fri frk fro frr i-d i-f ia- iaa iab iad iaf iai iao iar iba ibb ibd ibf ibi ibk ibo ibr ida idb idd idf idi idk ido idr ifa ifb ifd iff ifi ifo ifr iia iib iid iif iii iio iir ika ikb ikf iki ikk iko ikr io- ioa iob iod iof ioi ioo ior ir- ira irb ird irf iri irk iro irr ka- kaa kab kad kaf kai kak kao kar kba kbb kbd kbf kbi kbk kbo kbr kda kdb kdf kdk kdo kdr kfa kfd kff kfi kfo kia kib kid kif kii kik kio kir kkb kki kkk kkr koa kob kod kof koi kok koo kor kra krd krf kri krk kro krr o-i oaa oab oad oaf oai oak oao oar ob- oba obb obd obf obi obk obo obr oda odb odd odf odi odo odr of- ofa ofb ofd off ofi ofo ofr oia oib oid oif oii oik oio oir oka okb okd oki okk oko okr oo- ooa oob ood oof ooi ook ooo oor or- ora orb ord orf ori ork oro orr ra- raa rab rad raf rai rak rao rar rba rbb rbd rbf rbi rbk rbo rbr rda rdb rdd rdf rdi rdo rdr rfa rfb rfd rff rfi rfk rfo rfr ria rib rid rif rii rik rio rir rkb rkf rkk rko roa rob rod rof roi rok roo ror rra rrb rrd rrf rri rrk rrr

a-ak a-do a-ii a-ok aaaa aaab aaad aaaf aaai aaar aaba aabb aabd aabi aada aadi aafa aafb aafd aaff aafi aaib aaii aaka aaoo aara aard aari aaro abaa abab abad abaf abai abak abar abb- abba abbb abbi abbo abbr abda abdi abdo abff abia abib abid abir aboa abob abod abof abok aboo abor abra abri abro adaa adab adad adai adak adao adar adba adbi adda addd addi addo addr adfa adia adib adif adik adio adir adki adob adod adok adoo ador adra adro afaa afad afak afao afar afdb affa affi affo afia afib afid afif afik afir afka afkr afoa afoo afor afr- afra afri afro aiai aiba aibo aida aidb aidi aidr aifd aiff aiia aiib aiid aiir aika aiki aiko aioi aira aird airi airo akaa akai akao akar akia akid akif akik akio akir akka akki akko akok akr- akra aoba aoki aora aorb arab arad araf arai arak arar arba arbi arda ardf ardi ardo arfa arfb arff aria arib arid arif arii arik ario arka arki arko aroa arob arod aroi aroo aror arr- arra arri arrk arro arrr ba-i baaa baad baaf baak baar baba babb babi babo babr bada badb badd badi bado badr baff bafo baia baib baid baik baio bair bak- baka baki bako bakr bar- bara barb bard barf bari bark baro barr bbad bbbb bbdd bbdo bd-r bdii biad biaf biak biao biar biba bibb bibi bibo bida bidi bido bidr bifa biff bifi biko bio- bioi bira birb bird biri birk biro birr boab boad boai boak boar boba bobb bobi bobo boda bodb bodi bodo bofa bofd boff boi- boid boii boka boki boko boob bood boof book boor bor- bora bord borf bori bork boro borr brab brad braf 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 dafa daff dafi dafo daia daid daik daio dair daka daki dako dara darb dard darf dari dark daro darr dbar dbfo dddd dfaf dffa dfrf dfri dia- diab diad diaf diak diao diar diba dibb dibo dida didi dido dif- difa diff diii dika diki diko dior dira dird dirk dirr dkba dkid doab doak doar doba dobb dobi dod- doda dodd dodi dodo doff doid doka doki doko doob dood doof dook door dora dord dorf dori dork doro dorr draa drab drad draf drak drar drba drda drib drif drob drod drof drra f--k faaa faad faba fabd fabi fabo fada fadd fadi fado fafa faff fafi fafo faid faik faio fair faki fako fara farb fard fark faro farr fbar fdoa ffar ffff ffii ffrr fiaa fiad fiaf fiar fiba fida fidf fido fifa fiff fifi fifo fiii fika fiki fior fira firk fkab foad foaf foak foar foba foda fofo foia foid foki food foof fook for- fora forb ford fori fork foro forr frab frad frak fria frib frid