-er a-a a-b a-i aaa aab aae aaf aai aam aao aar ab- aba abb abe abf abi abm abo abr aea aeb aee aef aei aem aeo aer af- afa afb afe aff afi afm afo afr ai- aia aib aie aif aii aim aio air ama amb ame amf ami amm amo amr aoa aob aoe aof aoi aom aoo aor ar- ara arb are arf ari arm aro arr baa bab bae baf bai bam bao bar bba bbb bbe bbf bbi bbm bbo bbr be- bea beb bee bef bei bem beo ber bfa bfb bfe bff bfi bfm bfo bfr bi- bia bib bie bif bii bim bio bir bma bmb bme bmf bmi bmm bmo bmr boa bob boe bof boi bom boo bor bra brb bre brf bri brm bro brr eaa eab eae eaf eai eam eao ear eba ebb ebe ebf ebi ebm ebo ebr eea eeb eee eef eem eeo eer ef- efa efb efe eff efi efm efo efr eia eib eie eif eii eim eio eir em- ema emb eme emf emi emm emo emr eo- eoa eob eoe eof eoi eom eoo eor era erb ere erf eri erm ero err faa fab fae faf fai fam fao far fba fbb fbe fbf fbi fbm fbo fbr fea feb fee fef fei fem feo fer ffa ffe fff ffi ffm ffo ffr fia fib fie fif fii fim fir fma fmb fme fmf fmi fmm fmo fmr foa fob foe fof foi fom foo for fra frb fre frf fri frm fro frr i-f ia- iaa iab iae iaf iai iam iao iar iba ibb ibe ibf ibi ibm ibo ibr ie- iea iee ief iei iem ier ifa ifb ife iff ifi ifm ifo ifr iia iib iie iif iii iim iio iir im- ima imb ime imf imi imm imo io- ioa iob ioe iof ioi iom ioo ior ir- ira irb ire irf iri irm iro irr m-f m-o m-r maa mab mae maf mai mam mao mar mba mbb mbe mbf mbi mbm mbo mbr mea meb mee mef mei mem meo mer mfa mfb mfe mff mfi mfm mfo mfr mi- mia mib mie mif mii mim mio mir mma mmb mme mmf mmi mmm mmo mmr moa mob moe mof moi mom moo mor mra mrb mre mrf mri mrm mro mrr o-i oaa oab oae oaf oai oam oao oar ob- oba obb obe obf obi obm obo obr oea oeb oee oef oei oem oeo oer of- ofa ofb ofe off ofi ofm ofo ofr oia oib oie oif oii oim oio oir om- oma omb ome omf omi omm omo omr oo- ooa oob oof ooi oom ooo oor or- ora orb ore orf ori orm oro orr ra- raa rab rae raf rai ram rao rar rba rbb rbe rbf rbi rbm rbo rbr re- rea reb ree ref rei rem reo rer rfa rfb rfe rff rfi rfm rfo rfr ria rib rie rif rii rim rio rir rma rmb rme rmf rmi rmm rmo rmr roa rob roe rof roi rom roo ror rra rrb rrf rri rrm rrr

a-be a-ii aaaa aaab aaae aaaf aaai aaam aaar aaba aabb aabi aabm aaea aaem aafa aafb aaff aafi aaib aaii aama aamb aame aami aamo aamr aaoe aaoo aara aare aari aarm aaro abaa abab abae abaf abai abam abar abb- abba abbb abbe abbi abbo abbr abee aber abff abia abib abie abim abir abma abmb aboa abob abof aboo abor abra abri abro aeaf aebi aeer aeio aeom aer- aera aeri aero afaa afam afao afar afee afer affa affi affo afia afib afif afir afma afoa afoe afoo afor afr- afra afre afri afrm afro aiai aiba aibo aiea aiee aiff aiia aiib aiir aime aimi aimm aimo aioi aira aire airi airo amaa amae amai amam amar amb- amba ambe ambi ambo ambr amee amei amer amfm amfr amia amib amie amif amii amir amm- amma amme ammi ammo amob amof amoi amoo amor amra amri amro aoba aoma aora aorb arab arae araf arai aram arar arba arbe arbi area aree aref arei arem areo arfa arfb arff aria arib arie arif arii arim ario arma arme armi armm armo aroa arob aroe aroi arom aroo aror arr- arra arre arri arro arrr ba-i baaa baaf baam baar baba babb babe babi babm babo babr baer baff bafo baia baib baie baio bair bama bamb bame bamf bami bamm bar- bara barb bare barf bari barm baro barr bbbb bbeb beaf beam bear beba bebb bebe bebi bebo beeb beef beem beer befa befe beff befo beia beim beir bema beme beo- beof beor bera bere beri berm bero berr bfme biaf biao biar biba bibb bibe bibi bibo bieb bief bier bifa biff bifi bima bimo bio- bioi bira birb bire biri biro birr bmaa bmir bmmi boab boai boar boba bobb bobe bobi bobo boea boee boef boeo boer bofa bofe boff boi- boie boii boim boma bomb bome bomi boob booe boof boom boor bor- bora bore borf bori borm boro borr brab brae braf brai bram brao brea breb bree bref brei brem breo brer brfm bria brie brim brio broa brob broe brom broo bror brrm brrr eaaf eaba eafb eaif eama eame eaom eara earb eare earo ebam ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eefa eefe eemo eera eero efab efbr efeo effa effi efma efmi efor eiao eiei eier eime eimi eira eire emae emam emar emba embe embi embo embr emer emia emii emim emir emma emme emmi emor emra emre eoir eora eore eori eraf eram erba erbb erbe ereb erei erem erer eria erie erim erio erma erme ermo erob eroe eroi eroo erra erre erro faaa faam faba fabe fabi fabm fabo faeb faem fafa fafe faff fafi fafo faie faim faio fair fama fame