bbbb bbeb bblb bbpr bebb bebe bebi bebo beeb beel beep beer beil beir bele beli bell belo belp beo- beor bepo bere beri bero berr bibb bibe bibi bibl bibo bieb biel bier bile bili bill bilo bio- bioi biol bipp birb bire biri birl biro birr bleb blee blei bleo blio blip blir blob bloo blop bobb bobe bobi bobo boee boel boeo boep boer boi- boie boii boil bole boli boll bolo boob booe bool boop boor bope bopp bor- bore bori boro borr bpel bpoe breb bree brei brel breo brep brer brie bril brio brlp brob broe brol broo bror brrr ebbo ebbr ebel eber ebli eboe ebol eboo ebor ebpo ebro eeee eele eero eiei eier eile eipo eipr eire el-b el-p elbe elbi elbo elee eleo eler elie elil elio elle elli ello eloi elpe elpi elro eoir eole eoli eolo eore eori eorl epee eper epi- epie epil epip eple epll epol epor eppo eppp eprb epro eprp erbb erbe ereb erei erel erer erie eril erio erle erli erll erob eroe eroi erol eroo erpe erre erro i-be ibie ible ibri ibro ieie ieio iele iere ieri iiie iiii iiio iioi iioo iiop ile- ileo iler ilie ilio ilir ill- ille illi illo illp iloo ilpe ilpr ilre iobi ioee ioel ioii ioio iole iolo iooi iooo iopl iore iori iper ipie ipil iplo ipoe ipop ippo ippr ipri irbe irbp iree irel irer iri- irie iril irio irip irlb irob irop irpe irre irri lblr lebo leel leep leer leib leie leil leio leir lele leli lell lelo leoi leor lepe lepi lepo lepp lere lero lerp libe libo libr lieb liel liep lier liii liir lilb lile lili lill lilo lio- lior lip- lipb lipe lipi lipl lipo lipp lire liri lirl liro lirp lirr llll lloo lob- lobb lobe lobi lobo loeb loei loir lole loli loll lolo loob looe lool loop loor lope lopi lopp lore lori loro lppl lprp lroi lrrr o-eo obbo obel ober obie oble oboe oboi obol obor obre obri obro oeil oele oere oier oiii oire olbo ole- olei oleo oler olib olie olio olle olli ollo olor olpe oobe oobi ooer oolo oooo oore opei opel opep oper opie opii opio ople opo- opor oppi oppo orbb orbe orbi orbo ore- oreb orel oreo orer ori- orie oril orio orle orlo oro- oroe oror orpe orpi orri orro pbil pebl peel peep peer peil peio peip peir pel- pelb pele pell pelo peor pepe pepi pepo per- pere peri perl pero perp perr pibb pibi piel piep pier piip pil- pile pili pill pilo piob pipe pipi pipo pipp pire piri pirl piro pirr plbr ple- pleb plee plei pleo plib plie plio plip plob ploo plop plpp plri pobo poel poer poil poio pole poli poll polo pool poop poor pop- pope popi popo popp porb pore pori poro porr pper ppib ppie pple ppli pplo pppo pppp pre- preb pree prel prep pri- prie prii prle prlr pro- prob proe prol proo prop prri rbbb rbbr rble rebb rebe rebo reeb reel reep reii reil reir relb rele rell relo relp reol reop repe repi repl repo repp repr rere reri rero rib- ribe ribo riel riep rier rile rill rilo rilp riol ripe ripi ripl ripp ripr rire riri rlee rob- robb robe robi robo roel roer roil roio roir role roll rolo rolp roob rooi rool roop roor rope ropo rore rori roro rpii rpob rpoe rrle rrrr