bbbb bbeb bblb bebb bebe bebi bebo beeb beef beel beer befe beff befo beil beir bele beli bell belo beo- beof beor bere beri bero berr bffl bibb bibe bibi bibl bibo bieb bief biel bier biff bifi bile bili bill bilo bio- bioi biol birb bire biri birl biro birr bleb blee blei bleo blio blir blob bloo bobb bobe bobi bobo boee boef boel boeo boer bofe boff boi- boie boii boil bole boli boll bolo boob booe boof bool boor bor- bore borf bori boro borr breb bree bref brei brel breo brer brie bril brio brob broe brol broo bror brrr ebbo ebbr ebel eber ebli eboe ebol eboo ebor ebro eeee eefe eefl eele eero efbr efeo effi efil efor eiei eier eile eire el-b elbe elbi elbo elee elef eleo eler elfe elfi elie elif elil elio elle elli ello eloi elro eoir eole eoli eolo eore eori eorl erbb erbe ereb erei erel erer erie eril erio erle erli erll erob eroe eroi erol eroo erre erro fble febo feeb feel feer fefe feff fefi fefo feie feil feio feir fele felf feli fell felo feof ferb fere fero ferr ffee ffff ffii ffrr fibe fief fiel fier fife fiff fifi fifo fiii fiil file fili fill filo fioe fior fire flee fler flii flob floe floo flor foer fofo foie foil fole foli foll folo folr foof fool for- forb fore fori forl foro forr free frei freo frib frie fril frio frob froe frol i-be ibfi ibie ible ibri ibro ieie ieio iele iere ieri ifbb ifel ifer ifil ifor ifrb ifrf ifri iiie iiii iiio iioi iioo ile- ileo iler ilie ilio ilir ill- ille illi illo iloo ilre iobi ioee ioel ioii ioio iole iolo ioof iooi iooo iore iori irbe iree irel irer irfe iri- irie iril irio irlb irob irre irri lblr lebo leef leel leer lefe leff leib leie leif leil leio leir lele leli lell lelo leof leoi leor lere lero libe libo libr lieb lief liel lier life liff lifl lifo liii liir lilb lile lili lill lilo lio- lior lire liri lirl liro lirr llef llll lloo lob- lobb lobe lobi lobo loeb loei lofe loff lofi loif loir lole loli loll lolo loob looe loof lool loor lore lori loro lrif lroi lrrr o-eo obbo obel ober obie oble oboe oboi obol obor obre obri obro oeil oele oere ofer off- offe offo offr ofor ofre oier oiii oire olbo ole- olef olei oleo oler olfe olib olie olio olle olli ollo olof olor oobe oobi ooer ooff oolo oooo oore orbb orbe orbi orbo ore- oreb orel oreo orer orfe orff orfi ori- orie orif oril orio orle orlo oro- oroe orof oror orri orro rbbb rbbr rble rebb rebe rebo reeb reef reel refe reff refi refl refr reif reii reil reir relb rele rell relo reof reol rere reri rero rfef rffl rib- ribe ribo rief riel rier rife riff riif rile rill rilo riol rire riri rlee rlef rlif rob- robb robe robi robo roel roer rofe roff rofl rofo roif roil roio roir role rolf roll rolo roob roof rooi rool roor rore rori roro rrif rrle rrrr