-al -er a-a a-b aaa aab aae aaf aag aak aal aar ab- aba abb abe abf abg abk abl abr aea aeb aee aef aeg aek ael aer af- afa afb afe aff afg afk afl afr ag- aga agb age agf agg agk agl agr aka akb ake akg akk akl akr al- ala alb ale alf alg alk all alr ar- ara arb are arf arg ark arl arr baa bab bae baf bag bak bal bar bba bbb bbe bbf bbg bbk bbl bbr be- bea beb bee bef beg bek bel ber bfa bfb bfe bff bfg bfl bfr bga bgb bge bgf bgg bgk bgl bgr bka bkb bke bkf bkg bkk bkl bkr bla blb ble blf blg blk bll blr bra brb bre brf brg brk brl brr eaa eab eae eaf eag eak eal ear eba ebb ebe ebf ebg ebk ebl ebr eea eeb eee eef eeg eek eel eer ef- efa efb efe eff efg efl efr ega egb ege egf egg egl egr eka ekb eke ekf ekg ekl ekr ela elb ele elf elg elk ell elr era erb ere erf erg erk erl err faa fab fae faf fag fak fal far fba fbb fbe fbf fbg fbk fbl fbr fea feb fee fef feg fek fel fer ffa ffe fff ffg ffk ffl ffr fga fgb fge fgf fgg fgl fgr fka fkb fkf fkg fkk fkl fla flb fle flf flg fll flr fra frb fre frf frg frk frl frr gaa gab gae gaf gag gak gal gar gba gbe gbf gbg gbk gbl gbr ge- gea geb gee gef geg gek gel ger gfa gfb gfe gff gfk gfl gfr gga ggb ggg ggr gka gkb gla glb gle glf glg glk gll glr gra grb gre grf grg grk grl grr ka- kaa kab kae kaf kag kak kal kar kba kbb kbe kbf kbk kbl kbr ke- kea keb kee kef keg kek kel ker kfa kff kfg kga kgb kgf kgl kkb kke kkk kkl kkr kl- kla klb klf klg klr kra krf krg krk krl krr la- laa lab lae laf lag lak lal lar lba lbb lbe lbf lbg lbk lbl lbr lea leb lee lef leg lek lel ler lfa lfb lfe lff lfg lfk lfl lfr lga lgb lge lgf lgg lgk lgl lgr lka lkb lkg lkl lkr lla llb lle llf llg llk lll llr lra lrb lrf lrg lrk lrr ra- raa rab rae raf rag rak ral rar rba rbb rbe rbf rbg rbk rbl rbr re- rea reb ree ref reg rek rel rer rfa rfb rfe rff rfg rfk rfl rfr rga rgb rge rgf rgg rgk rgr rkb rke rkf rkg rkk rla rle rlf rlg rll rlr rra rrb rrf rrg rrk rrl rrr

a-ak a-be aaaa aaab aaae aaaf aaal aaar aaba aabb aabl aaea aafa aafb aaff aafl aage aaka aake aala aale aall aara aare abaa abab abae abaf abag abak abal abar abb- abba abbb abbe abbr abee abel aber abff abgl abla able abra aeaf aeer aega aeka aela aer- aera afaa afak afar afee afek afel afer affa afgf afka afkr afla afle aflg afr- afra afre agag agal agar agba agea agee agel ager agfa agga agge agla agle agra agre agrl akaa akae akal akar akee akeg akel aker akka akle akr- akra akre alaa alae alag alak alal alar alb- alba albe alea alee alef aleg alek aler alfa alfe alg- alga alge alk- alka alkb alke all- alla alle alll allr arab arae araf arag arak aral arar arba arbe area aree aref areg arek arel arfa arfb arff arga argb arge arka arke arla arle arr- arra arre arrg arrk arrr baaa baaf baak baal baar baba babb babe babr baek bael baer baff baga bage bagg bak- baka bake bakl bakr bala bale balf balk ball bar- bara barb bare barf barg bark barr bbbb bbeb bbga bblb bbrg beaf beag beak beal bear beba bebb bebe beeb beef beeg beek beel beer befa befe beff bega begg beka beke bela bele belg belk bell bera bere berg berk berr bffl bfgf blaa blab blae blag blak blea bleb blee bleg blek blkb blrg brab brae braf brag brak brea breb bree bref breg brek brel brer brka brkb brrr e-la eaaf eaba eafb eaga eage eagl eala eale eara earb eare earl ebal ebba ebbr ebel eber ebla eeea eeee eefa eefe eefl eega eeka eeke eele eera eerg ef-g efab efbr effa efke efla egaa egae egal egar egba egbe egea egee egel eger egfr eggb egge egle egra egre eka- ekab ekeb ekek eker ekka el-b elab elal elar elba elbe elea elee elef elek eler elfa elfe elgg elka elke ella elle elra eraf eral erba erbb erbe ereb erel erer erg- erga ergg erke erla erle erll erra erre f--k faaa faba fabe faeb fafa fafe faff fafg fage fagg fake fala fale falk fall fara farb fare farg fark farl farr fbar fbla fble feaf feak feal fear feba feeb feek feel feer fefe feff fege fegg feke fela fele felf felk fell fera ferb fere ferk ferr ffar ffee ffff ffrr fkab flab flae flag flak flea flee fleg fler frab frae frag frak frea free frla gaal gaar gaba gabb gabe gabl gabr gaea gael gaer gafa gafb gaff gaga gage gagg gala gale galk gall gara garb gare garf garg garr gbag geab geal gear geba gebe geek geel geer gefe gege gegg gegl gela gelb gele gelf gelg gell gera gerb gere gerl gfer gffa ggfg gggg glaa glab glak glar gleb glee gleg glge glrb grab grae graf grbr grea greb gree gref greg grfa grrl grrr kaaa kaab kaaf kaag kaak kaal kaar kaba kabb kabe kabf kabg kabr kael kaer kafa kafe kaff kafr kag- kaga kagb kage kagg kagl kagr