-er a-a a-b a-t aaa aab aae aaf aam aao aar aat ab- aba abb abe abf abm abo abr abt aea aeb aee aef aem aeo aer aet af- afa afb afe aff afm afo afr aft ama amb ame amf amm amo amr amt aoa aob aoe aof aom aoo aor aot ar- ara arb are arf arm aro arr art at- ata atb ate atf atm ato atr att baa bab bae baf bam bao bar bat bba bbb bbe bbf bbm bbo bbr bbt be- bea beb bee bef bem beo ber bet bfa bfb bfe bff bfm bfo bfr bft bma bmb bme bmf bmm bmo bmr bmt boa bob boe bof bom boo bor bot bra brb bre brf brm bro brr brt bta btb bte btf btm bto btr btt eaa eab eae eaf eam eao ear eat eba ebb ebe ebf ebm ebo ebr ebt eea eeb eee eef eem eeo eer eet ef- efa efb efe eff efm efo efr eft em- ema emb eme emf emm emo emr emt eo- eoa eob eoe eof eom eoo eor eot era erb ere erf erm ero err ert eta etb ete etf etm eto etr ett faa fab fae faf fam fao far fat fba fbb fbe fbf fbm fbo fbr fbt fea feb fee fef fem feo fer fet ffa ffe fff ffm ffo ffr fft fma fmb fme fmf fmm fmo fmr fmt foa fob foe fof fom foo for fot fra frb fre frf frm fro frr frt fta ftb fte ftf ftm fto ftr ftt m-f m-o m-r maa mab mae maf mam mao mar mat mba mbb mbe mbf mbm mbo mbr mbt mea meb mee mef mem meo mer met mfa mfb mfe mff mfm mfo mfr mft mma mmb mme mmf mmm mmo mmr mmt moa mob moe mof mom moo mor mot mra mrb mre mrf mrm mro mrr mrt mta mtb mte mtf mtm mto mtr mtt oaa oab oae oaf oam oao oar oat ob- oba obb obe obf obm obo obr obt oea oeb oee oef oem oeo oer oet of- ofa ofb ofe off ofm ofo ofr oft om- oma omb ome omf omm omo omr omt oo- ooa oob oof oom ooo oor oot or- ora orb ore orf orm oro orr ort ot- ota otb ote otf otm oto otr ott ra- raa rab rae raf ram rao rar rat rba rbb rbe rbf rbm rbo rbr rbt re- rea reb ree ref rem reo rer ret rfa rfb rfe rff rfm rfo rfr rft rma rmb rme rmf rmm rmo rmr rmt roa rob roe rof rom roo ror rot rra rrb rrf rrm rrr rrt rta rtb rte rtf rtm rto rtr rtt taa tab tae taf tam tao tar tat tba tbb tbe tbf tbm tbo tbr tbt te- tea teb tee tef tem teo ter tet tfa tfb tfe tff tfm tfo tfr tft tma tmb tme tmf tmm tmo tmr tmt to- toa tob toe tof tom too tor tot tra trb tre trf trm tro trr trt tta ttb tte ttf ttm tto ttr ttt

a-be aaaa aaab aaae aaaf aaam aaar aaba aabb aabm aabt aaea aaem aafa aafb aaff aama aamb aame aamo aamr aaoe aaoo aara aare aarm aaro aart aata aatf aatt abaa abab abae abaf abam abar abat abb- abba abbb abbe abbo abbr abbt abee aber abet abff abma abmb abmt aboa abob abof aboo abor abot abra abro abta aeaf aeer aemt aeom aer- aera aero aeta aetf aeto aetr aett afaa afam afao afar afat afee afer afet affa affo afft afma afoa afoe afoo afor afr- afra afre afrm afro afta afte amaa amae amam amar amat amb- amba ambe ambo ambr amee amer amet amfm amfr amm- amma amme ammo amob amof amoo amor amot amra amro amta amte amto aoba aoma aora aorb aort aotf arab arae araf aram arar arat arba arbe area aree aref arem areo aret arfa arfb arff arft arma arme armm armo armt aroa arob aroe arom aroo aror arr- arra arre arro arrr arrt arta arte arto artr at-t ataa atab atae atar atat atea atee atef atem ateo ater atfb atfe atm- atma atme atmo atob atoe atof atom ator atot atra atre atrm atro atta atte atto attr baaa baaf baam baar baat baba babb babe babm babo babr baer baff bafo baft bama bamb bame bamf bamm bar- bara barb bare barf barm baro barr bart bata bate batf bato batt bbbb bbeb bbet beaf beam bear beat beba bebb bebe bebo beeb beef beem beer beet befa befe beff befo beft bema beme beo- beof beor beot bera bere berm bero berr bert beta bete beto bett bfme bfta bftt bmaa boab boar boat boba bobb bobe bobo boea boee boef boeo boer boet bofa bofe boff boma bomb bome bomt boob booe boof boom boor boot bor- bora bore borf borm boro borr bort bota botb bote boto bott brab brae braf bram brao brat brea breb bree bref brem breo brer bret brfm broa brob broe brom broo bror brot brrm brrr btaa btaf btob btor btrt bttb eaaf eaba eafb eama eame eaom eara earb eare earo eart eata eate ebam ebba ebbo ebbr eber eboe eboo ebor ebro eeea eeee eefa eefe eemo eera eero eeta eete efab efbr efeo efet effa efma efor eft- efta emae emam emar emba embe embo embr emer emet emma emme emor emra emre emta emte eora eore eota eoto eraf eram erat erba erbb erbe ereb erem erer eret erft erma erme ermo erob eroe eroo erra erre erro erta etam etat etbr etee etem eter etfa etfb etfe etoe etra etre etrm etro etta ette etto faaa faam faba fabe fabm fabo faeb faem fafa fafe faff fafo fama fame famo fara farb fare farm faro farr fart fata