a-a a-b a-i aaa aab aad aaf aai aam aao aar ab- aba abb abd abf abi abm abo abr ad- ada adb add adf adi adm ado adr af- afa afb afd aff afi afm afo afr ai- aia aib aid aif aii aim aio air ama amb amd amf ami amm amo amr aoa aob aod aof aoi aom aoo aor ar- ara arb ard arf ari arm aro arr baa bab bad baf bai bam bao bar bba bbb bbd bbf bbi bbm bbo bbr bda bdb bdd bdf bdi bdm bdo bdr bfa bfb bfd bff bfi bfm bfo bfr bi- bia bib bid bif bii bim bio bir bma bmb bmd bmf bmi bmm bmo bmr boa bob bod bof boi bom boo bor bra brb brd brf bri brm bro brr daa dab dad daf dai dam dao dar dba dbb dbd dbf dbi dbm dbo dbr dda ddb ddd ddf ddi ddm ddo ddr dfa dfb dfd dff dfi dfm dfo dfr di- dia dib did dif dii dim dio dir dma dmb dmd dmf dmi dmm dmo dmr doa dob dod dof doi dom doo dor dra drb drd dri drm dro drr faa fab fad faf fai fam fao far fba fbb fbd fbf fbi fbm fbo fbr fda fdb fdd fdf fdi fdm fdo fdr ffa ffd fff ffi ffm ffo ffr fia fib fid fif fii fim fir fma fmb fmd fmf fmi fmm fmo fmr foa fob fof foi fom foo for fra frb frd frf fri frm fro frr i-d i-f ia- iaa iab iad iaf iai iam iao iar iba ibb ibd ibf ibi ibm ibo ibr ida idb idd idf idi idm ido idr ifa ifb ifd iff ifi ifm ifo ifr iia iib iid iif iii iim iio iir im- ima imb imd imf imi imm imo io- ioa iob iod iof ioi iom ioo ior ir- ira irb ird irf iri irm iro irr m-f m-o m-r maa mab mad maf mai mam mao mar mba mbb mbd mbf mbi mbm mbo mbr mda mdb mdd mdf mdi mdm mdo mdr mfa mfb mfd mff mfi mfm mfo mfr mi- mia mib mid mif mii mim mio mir mma mmb mmd mmf mmi mmm mmo mmr moa mob mod mof moi mom moo mor mra mrb mrd mrf mri mrm mro mrr o-i oaa oab oad oaf oai oam oao oar ob- oba obb obd obf obi obm obo obr oda odb odd odf odi odm odo odr of- ofa ofb ofd off ofi ofm ofo ofr oia oib oid oif oii oim oio oir om- oma omb omd omf omi omm omo omr oo- ooa oob ood oof ooi oom ooo oor or- ora orb ord orf ori orm oro orr ra- raa rab rad raf rai ram rao rar rba rbb rbd rbf rbi rbm rbo rbr rda rdb rdd rdf rdi rdm rdo rdr rfa rfb rfd rff rfi rfm rfo rfr ria rib rid rif rii rim rio rir rma rmb rmd rmf rmi rmm rmo rmr roa rob rod rof roi rom roo ror rra rrb rrd rrf rri rrm rrr

a-do a-ii aaaa aaab aaad aaaf aaai aaam aaar aaba aabb aabd aabi aabm aada aadi aafa aafb aafd aaff aafi aaib aaii aama aamb aamd aami aamo aamr aaoo aara aard aari aarm aaro abaa abab abad abaf abai abam abar abb- abba abbb abbi abbo abbr abda abdi abdo abff abia abib abid abim abir abma abmb aboa abob abod abof aboo abor abra abri abro adaa adab adad adai adam adao adar adba adbi adda addd addi addo addr adfa adia adib adif adim adio adir adma admb admi admr adob adod adoo ador adra adro afaa afad afam afao afar afdb affa affi affo afia afib afid afif afir afma afoa afoo afor afr- afra afri afrm afro aiai aiba aibo aida aidb aidi aidr aifd aiff aiia aiib aiid aiir aimi aimm aimo aioi aira aird airi airo amaa amad amai amam amar amb- amba ambi ambo ambr amda amdo amfm amfr amia amib amid amif amii amir amm- amma ammi ammo amob amod amof amoi amoo amor amra amri amro aoba aoma aora aorb arab arad araf arai aram arar arba arbi arda ardf ardi ardm ardo arfa arfb arff aria arib arid arif arii arim ario arma armd armi armm armo aroa arob arod aroi arom aroo aror arr- arra arri arro arrr ba-i baaa baad baaf baam baar baba babb babi babm babo babr bada badb badd badi bado badr baff bafo baia baib baid baio bair bama bamb bamf bami bamm bar- bara barb bard barf bari barm baro barr bbad bbbb bbdd bbdo bd-r bdii bdmi bdrm biad biaf biao biar biba bibb bibi bibo bida bidi bido bidr bifa biff bifi bima bimo bio- bioi bira birb bird biri biro birr bmaa bmdb bmir bmmi boab boad boai boar boba bobb bobi bobo boda bodb bodi bodo bofa bofd boff boi- boid boii boim boma bomb bomi boob bood boof boom boor bor- bora bord borf bori borm boro borr brab brad braf brai bram brao brda brdm brdo brfm bria brid brim brio broa brob brod brom broo bror brrm brrr d-bo daab daad daam daar daba dabb dabo dada dadi dado dafa daff dafi dafo daia daid daim daio dair dama damb dami damm damo dara darb dard darf dari daro darr dbar dbfo dddd dfaf dffa dfma dfrf dfri dia- diab diad diaf diam diao diar diba dibb dibo dida didi dido dif- difa diff diii dima dimi dimm dimo dior dira dird dirr dmaa dmab dmba dmbf dmfa dmrb doab doar doba dobb dobi dod- doda dodd dodi dodo doff doid doma domb domi domm domo doob dood doof doom door dora dord dorf dori dorm doro dorr draa drab drad draf dram drar drba drda drib drif drob drod drof drom