a-be aaaa aaab aaae aaaf aaal aaar aaba aabb aabl aabt aaea aafa aafb aaff aafl aala aale aall aara aare aart aata aatf aatt abaa abab abae abaf abal abar abat abb- abba abbb abbe abbr abbt abee abel aber abet abff abla able abra abta aeaf aeer aela aer- aera aeta aetf aetr aett afaa afar afat afee afel afer afet affa afft afla afle afr- afra afre afta afte alaa alae alal alar alat alb- alba albe alea alee alef aler alet alfa alfe all- alla alle alll allr alta alte arab arae araf aral arar arat arba arbe area aree aref arel aret arfa arfb arff arft arla arle arr- arra arre arrr arrt arta arte artr at-l at-t ataa atab atae atal atar atat atea atee atef atel ater atfb atfe atla atle atra atre atta atte attr baaa baaf baal baar baat baba babb babe babr bael baer baff baft bala bale balf ball balt bar- bara barb bare barf barr bart bata bate batf batt bbbb bbeb bbet bblb beaf beal bear beat beba bebb bebe beeb beef beel beer beet befa befe beff beft bela bele bell belt bera bere berr bert beta bete bett bffl bfta bftt blaa blab blae blat blbt blea bleb blee blet brab brae braf brat brea breb bree bref brel brer bret brrr btaa btaf btla btrt bttb e-la eaaf eaba eafb eala eale eara earb eare earl eart eata eate ebal ebba ebbr ebel eber ebla eeea eeee eefa eefe eefl eele eera eeta eete efab efbr efet effa efla eft- efta el-b elab elal elar elat elba elbe elea elee elef eler elet elfa elfe elft ella elle elra elta elte eraf eral erat erba erbb erbe ereb erel erer eret erft erla erle erll erra erre erta ertl etal etat etbr etee etel eter etfa etfb etfe etla etra etre etta ette faaa faba fabe faeb fafa fafe faff fala fale fall falt fara farb fare farl farr fart fata fate fatf fatt fbar fbla fble feaf feal fear feat feba feeb feel feer feet fefe feff fela fele felf fell felt fera ferb fere ferr fert feta fete fetr fett ffar ffee ffff ffrr fftf flab flae flat flea flee fler flet frab frae frat frea free fret frla frta ft-l ftea fter ftlb laaa laal laar laat laba labe labr lael laer laet lafb lafe laff laft lala lale lall lara larb lare larf larr lart lata late latt lbar lblr lbrt leaa leaf leal lear leat leba leea leef leel leer leet lefa lefe leff left lela lele lell lera lere lert leta lete lett lfat llat llef llet llll lral lrat lrba lrrr lrta ltae ltbf ltbl ltee ltra lttr raab raaf raat raba rabb rabe rabl raef rael raer rafa rafe raff raft rala ralb rale ralf rall ralt rara rarb rare rarf rata rate ratf ratt rbaf rbbb rbbr rble rea- reae reaf real rear reat reba rebb rebe reeb reef reel reet refe reff refl refr reft rela relb rele rell relt rera rere rert reta rete retr rett rfae rfef rffl rlab rlee rlef rrat rrle rrrr rtbf rtee rtfb rtle rtlt taa- taaf taal taar taat taba tabb tabe tabl tael taer tafa tafe taff taft tala tale tall tara tarb tare tarf tarr tart tata tatb tate tatr tatt tbaf tbar tbrb tbta teal tear teat teba teef teel teer teet teff tefl teft tel- tela tele tell telt ter- tera tere terf terr teta tete tetr tett tfae tfal tfeb traa trab trae traf tral trat tre- trea tree tref tret trfr trra trte trtr ttab ttbb tter ttfa ttff tttt