bbbb bbci bbeb bblb bbrc bcbc bccc bcci bccl bcec bcer bcie bcor bebb bebe bebi bebo beci beeb beel beer beic beil beir bele beli bell belo beo- beor berc bere beri bero berr bibb bibe bibi bibl bibo bicc bice bici bico bieb biel bier bile bili bill bilo bio- bioc bioi biol birb bire biri birl biro birr bleb blee blei bleo blic blio blir blob bloc bloo blrc bobb bobe bobi bobo boce boco boec boee boel boeo boer boi- boie boii boil bole boli boll bolo boob booc booe bool boor bor- bore bori boro borr brcb brce breb brec bree brei brel breo brer bric brie bril brio brob broc broe brol broo bror brrr c-bo cbbc cbcc cbce cbcl cbcr cbec cbee cber cbir cblb cblc cbol cbre cbrl ccbc cccb cccc ccci cccl ccee ccel ccic ccii ccil ccir cclc ccli ccob ccoc ccrc ccre ccri ccrl cec- cece ceci ceco ceeb ceec ceel ceil cel- celc cele celi cell celo ceol ceor cer- cerc cere ceri cerl cero cibc cibe cibi cibo cicc cici cico cicr ciee ciel cier ciii cili cill cilo ciob cior cirb circ cire ciri cirl ciro cirr clec clee clei cleo cler clib clic clii clio clir clob cloe cloo clor clri clro cobb cobe cobi cobo coce coco coel coil coir col- colb cole coli coll colo coob cool cor- corb corc core cori corl coro corr crbc crcc crce crcr cre- creb crec cree crei creo crib cric crie crob croc croe crol croo cror e-cl ebbc ebbo ebbr ebcc ebel eber ebic ebli eboe ebol eboo ebor ebro ecbc ecbe eccb eccc ecce ecci eccl ecco ecib ecil eco- ecol ecrc ecri ecrl ecrr eeee eele eeoc eerc eero eico eiec eiei eier eile eire el-b elbe elbi elbo elcb elce elco elec elee eleo eler elic elie elil elio elle elli ello eloi elro eoir eole eoli eolo eore eori eorl erbb erbe ercc erce ereb erec erei erel erer eric erie eril erio erle erli erll erob eroc eroe eroi erol eroo errc erre erro i-be ibec ibie ible ibrc ibri ibro icbc iccb iccc icci iccl icco iccr icec icee icel icer icle icll iclr icoc icor icrc icre icrr iecc ieie ieio iele iere ieri iiie iiii iiio iioi iioo iirc ilbc ilce ile- ilec ileo iler ilic ilie ilio ilir ill- ille illi illo iloc iloo ilre iobi ioci ioee ioel ioii ioio iole iolo iooi iooo iore iori irbe ircc iree irel irer iri- iric irie iril irio irlb irob iroc irrc irre irri lbcc lblr lcbc lccc lcce lcer lcor lcrl lebo lece leco leel leer leib leic leie leil leio leir lele leli lell lelo leoc leoi leor lerc lere lero libc libe libo libr lice lico licr lieb liel lier liii liir lilb lile lili lill lilo lio- lior lirc lire liri lirl liro lirr llcc lllc llll lloc lloo lob- lobb lobe lobi lobo locc loce loci loco loeb loei loic loir lole loli loll lolo loob looc looe lool loor lore lori loro lric lroc lroi lrrc lrrr o-eo obbo obec obel ober obie oble oboe oboi obol obor obre obri obro ocbc occc occi oce ocee oclc ocre ocrl ocro ocrr oec- oecc oeec oeil oele oere oici oier oiii oire olbo olcc ole- olei oleo oler olib olic olie olio olle olli ollo olor oobe oobi oocr ooer oolo oooo oore orbb orbe orbi orbo orce orci orco ore- oreb orec orel oreo orer ori- oric orie oril orio orle orlo oro- oroe oror orri orro rbbb rbbr rbcl rble rcbc rcbo rccb rccc rcic rcle rebb rebe rebo recc rece reci recr reeb reel reii reil reir relb rele rell relo reol rere reri rero rib- ribe ribo ricc rice rico riel rier rile rill rilo riol rire riri rlee rob- robb robe robi robo rocc roce roco roel roer roil roio roir role roll rolo roob rooi rool roor rorc rore rori roro rrle rrrr