a-be aaaa aaab aaae aaaf aaal aaba aabb aabl aaea aafa aafb aaff aafl aala aale aall aalo aaoe aaoo abaa abab abae abaf abal abax abb- abba abbb abbe abbo abee abel abff abla able ablo aboa abob abof abol aboo abox aeaf aela afaa afao afee afel affa affo afla afle afoa afoe afol afoo afox afxe alaa alae alal alao alb- alba albe albo alea alee alef aleo alex alfa alfe all- alla alle alll allo aloa aloe alof alol aloo alxa aoba aola aole axaf axal axel axle axo- axoa axof axxo ba-x baaa baaf baal baba babb babe babo bael baff bafo bala bale balf ball balo baol bbbb bbeb bblb bbox beaf beal beba bebb bebe bebo beeb beef beel befa befe beff befo bela bele bell belo beo- beof bffl blaa blab blae blea bleb blee bleo blob bloo boab boal boba bobb bobe bobo boea boee boef boel boeo bofa bofe boff bola bole boll bolo boob booe boof bool boox boxa e-la eaaf eaba eafb eala eale eaxl ebal ebba ebbo ebel ebla eboe ebol eboo ebox eeea eeee eefa eefe eefl eele efab efax efeo effa efla el-b elab elal elba elbe elbo elea elee elef eleo elex elfa elfe ella elle ello eola eole eolo exa- exel exfo exo- faaa faba fabe fabo faeb faex fafa fafe faff fafo fala fale fall falo falx faxe fbla fble feaf feal feba febo feeb feel fefe feff fefo fela fele felf fell felo feof ffee ffff flab flae flao flax flea flee flex flob floe floo flox foaf foal foba fofo fola fole foll folo folx foof fool foxe foxx laaa laal laax laba labe labo lael lafb lafe laff lala lale lall lalo laxa laxe laxo leaa leaf leal leao leba lebo leea leef leel lefa lefe leff lela lele lell lelo leof leox lexa lexx llao llef llll lloa lloo loaf lob- loba lobb lobe lobo loeb lofa lofe loff lola lole loll lolo loob looe loof lool lox- loxa loxo lxxx o-eo oafo oall obal obba obbo obea obel obex obla oble oboe obol obox oeax oela oele off- offa offe offo ofla olaf olax olba olbo ole- olea olef oleo olfa olfe olla olle ollo olof ooaa ooba oobe ooff oola oolo oooo oxa- oxal oxea oxo- oxof oxox oxxo xala xall xbee xbel xbox xefe xela xexe xlox xolo xoxo xxxo xxxx