a-be aaaa aaab aaae aaaf aaal aaba aabb aabl aabt aaea aafa aafb aaff aafl aala aale aall aalo aaoe aaoo aata aatf aatt abaa abab abae abaf abal abat abb- abba abbb abbe abbo abbt abee abel abet abff abla able ablo aboa abob abof abol aboo abot abta aeaf aela aeta aetf aeto aett afaa afao afat afee afel afet affa affo afft afla afle afoa afoe afol afoo afta afte alaa alae alal alao alat alb- alba albe albo alea alee alef aleo alet alfa alfe all- alla alle alll allo aloa aloe alof alol aloo alot alta alte alto aoba aola aole aotf at-l at-t ataa atab atae atal atat atea atee atef atel ateo atfb atfe atla atle atlo atob atoe atof atol atot atta atte atto baaa baaf baal baat baba babb babe babo bael baff bafo baft bala bale balf ball balo balt baol bata bate batf bato batt bbbb bbeb bbet bblb beaf beal beat beba bebb bebe bebo beeb beef beel beet befa befe beff befo beft bela bele bell belo belt beo- beof beot beta bete beto bett bffl bfta bftt blaa blab blae blat blbt blea bleb blee bleo blet blob bloo blot boab boal boat boba bobb bobe bobo boea boee boef boel boeo boet bofa bofe boff bola bole boll bolo bolt boob booe boof bool boot bota botb bote boto bott btaa btaf btla btob bttb e-la eaaf eaba eafb eala eale eata eate ebal ebba ebbo ebel ebla eboe ebol eboo eeea eeee eefa eefe eefl eele eeta eete efab efeo efet effa efla eft- efta el-b elab elal elat elba elbe elbo elea elee elef eleo elet elfa elfe elft ella elle ello elta elte elto eola eole eolo eota eoto etal etat etee etel etfa etfb etfe etla etoe etta ette etto faaa faba fabe fabo faeb fafa fafe faff fafo fala fale fall falo falt fata fate fatf fato fatt fbla fble feaf feal feat feba febo feeb feel feet fefe feff fefo fela fele felf fell felo felt feof feta fete fett ffee ffff fftf flab flae flao flat flea flee flet flob floe floo flot foaf foal foba fobt fofo fola fole foll folo folt foof fool foot fota fote foto fott ft-l ftea ftlb laaa laal laat laba labe labo lael laet lafb lafe laff laft lala lale lall lalo lata late lato latt leaa leaf leal leao leat leba lebo leea leef leel leet lefa lefe leff left lela lele lell lelo leof leta lete leto lett lfat llao llat llef llet llll lloa lloo loaf loat lob- loba lobb lobe lobo loeb lofa lofe loff loft lola lole loll lolo loob looe loof lool loot lota lote lotl loto lott ltae ltbf ltbl ltee o-eo oafo oall oate obal obba obbo obea obel obet obla oble oboe obol obot oela oele oeta off- offa offe offo ofla ofta olaf olat olba olbo ole- olea olef oleo olet olfa olfe olla olle ollo olof olot olta ooaa ooba oobe ooff oola oolo oooo ootb otea otee oto- otoe otof otoo otta otte otto taa- taaf taal taat taba tabb tabe tabl tabo tael tafa tafe taff tafo taft tala tale tall talo taoa tata tatb tate tato tatt tbaf tbta teal teat teba tebo teef teel teet teff tefl teft tel- tela tele tell telo telt teta tete teto tett tfae tfal tfeb tfot toab toal toat toba tobe tobo tobt toea toee toet tofa toff tofo toft tol- tola tole toll tolo tolt tooa toof tool toot tota tote toto tott ttab ttbb tteo ttfa ttff ttoe tttt