-er a-a a-b a-i aaa aab aae aaf aai aam aar ab- aba abb abe abf abi abm abr aea aeb aee aef aei aem aer af- afa afb afe aff afi afm afr ai- aia aib aie aif aii aim air ama amb ame amf ami amm amr ar- ara arb are arf ari arm arr baa bab bae baf bai bam bar bba bbb bbe bbf bbi bbm bbr be- bea beb bee bef bei bem ber bfa bfb bfe bff bfi bfm bfr bi- bia bib bie bif bii bim bir bma bmb bme bmf bmi bmm bmr bra brb bre brf bri brm brr eaa eab eae eaf eai eam ear eba ebb ebe ebf ebi ebm ebr eea eeb eee eef eem eer ef- efa efb efe eff efi efm efr eia eib eie eif eii eim eir em- ema emb eme emf emi emm emr era erb ere erf eri erm err faa fab fae faf fai fam far fba fbb fbe fbf fbi fbm fbr fea feb fee fef fei fem fer ffa ffe fff ffi ffm ffr fia fib fie fif fii fim fir fma fmb fme fmf fmi fmm fmr fra frb fre frf fri frm frr i-f ia- iaa iab iae iaf iai iam iar iba ibb ibe ibf ibi ibm ibr ie- iea iee ief iei iem ier ifa ifb ife iff ifi ifm ifr iia iib iie iif iii iim iir im- ima imb ime imf imi imm ir- ira irb ire irf iri irm irr m-f m-r maa mab mae maf mai mam mar mba mbb mbe mbf mbi mbm mbr mea meb mee mef mei mem mer mfa mfb mfe mff mfi mfm mfr mi- mia mib mie mif mii mim mir mma mmb mme mmf mmi mmm mmr mra mrb mre mrf mri mrm mrr ra- raa rab rae raf rai ram rar rba rbb rbe rbf rbi rbm rbr re- rea reb ree ref rei rem rer rfa rfb rfe rff rfi rfm rfr ria rib rie rif rii rim rir rma rmb rme rmf rmi rmm rmr 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 aamr aara aare aari aarm abaa abab abae abaf abai abam abar abb- abba abbb abbe abbi abbr abee aber abff abia abib abie abim abir abma abmb abra abri aeaf aebi aeer aer- aera aeri afaa afam afar afee afer affa affi afia afib afif afir afma afr- afra afre afri afrm aiai aiba aiea aiee aiff aiia aiib aiir aime aimi aimm aira aire airi amaa amae amai amam amar amb- amba ambe ambi ambr amee amei amer amfm amfr amia amib amie amif amii amir amm- amma amme ammi amra amri arab arae araf arai aram arar arba arbe arbi area aree aref arei arem arfa arfb arff aria arib arie arif arii arim arma arme armi armm arr- arra arre arri arrr ba-i baaa baaf baam baar baba babb babe babi babm babr baer baff baia baib baie bair bama bamb bame bamf bami bamm bar- bara barb bare barf bari barm barr bbbb bbeb beaf beam bear beba bebb bebe bebi beeb beef beem beer befa befe beff beia beim beir bema beme bera bere beri berm berr bfme biaf biar biba bibb bibe bibi bieb bief bier bifa biff bifi bima bira birb bire biri birr bmaa bmir bmmi brab brae braf brai bram brea breb bree bref brei brem brer brfm bria brie brim brrm brrr eaaf eaba eafb eaif eama eame eara earb eare ebam ebba ebbr eber eeea eeee eefa eefe eera efab efbr effa effi efma efmi eiei eier eime eimi eira eire emae emam emar emba embe embi embr emer emia emii emim emir emma emme emmi emra emre eraf eram erba erbb erbe ereb erei erem erer eria erie erim erma erme erra erre faaa faam faba fabe fabi fabm faeb faem fafa fafe faff fafi faie faim fair fama fame fami fara farb fare farm farr fbar feaf feam fear feba feeb feem feer fefe feff fefi feia feie feir fema femb feme femi femm fera ferb fere ferm ferr ffar ffee ffff ffii ffrr fiaa fiaf fiar fiba fibe fief fier fifa fife fiff fifi fifm fiii fima fime fimr fira fire firm fmea fmri frab frae fram frea free frei frem fria frib frie frim i-be iaaa iaai iaba iabm iaea iafe iaff iaia iaim iama iamb iame iami iara iare ibar ibbm ibea ibfi ibia ibie ibim ibma ibra ibri ieie iema ieme iera iere ieri ifaa ifae ifar ifbb ifer ifim ifma ifra ifrb ifrf ifri iifa iiie iiii iira imaf imai imam imar imba imbe imbi imea imer imfi imir imma imme immi imra imre imri imrr irae iraf irai iram irar irbe irbm iree irem irer irfe irfm iri- iria irie irma irra irre irri ma-i maaa maaf maai maam maar maba mabe mabi maee maem maer mafa mafb maff mafi maia maib maie maif maii maim mair mama mame mamf mami mar- mara mare marf mari marm marr mbam mbba mbia mbim meai mear mebe meef meem meer mefe meff mefi meir mema meme memr mer- mera merb mere merf meri merm mfbm mffa mfri miaa miab miaf miai miam miee miem mier mifa miff mifi miii mim- mima mime mimi mira mire miri mirr mmaa mmab mmai mmar mmea mmff mmii mmmm mmrf mrbb mrbm mreb mree mria raab raaf raam raba rabb rabe rabi raef raer rafa rafe raff rafi raia raie raif raii raim rair rama ramb rame rami ramm rara rarb rare rarf rari rbaf rbbb rbbr rea- reae reaf ream rear reba rebb rebe reeb reef reem refe reff refi refr reia reif reii reim reir rema reme remi rera rere reri rfae rfam rfef rfem riaa riab riai riam