bbbb bbeb bblb bbrc bbrg bcbc bcbg bccc bccl bcec bcer bcor bebb bebe bebo beeb beeg beel beer begg bego bele belg bell belo beo- beor berc bere berg bero berr bleb blee bleg bleo blob bloc blog bloo blrc blrg bobb bobe bobo boce boco boec boee boel boeo boer boge bogg bogo bole bolg boll bolo boob booc booe boog bool boor bor- bore borg boro borr brcb brce breb brec bree breg brel breo brer brob broc broe brog brol broo bror brrr c-bo cbbc cbcc cbce cbcl cbcr cbec cbee cber cbgb cblb cblc cbol cbre cbrl ccbc cccb cccc cccl ccee ccel ccgc cclc cclg ccob ccoc ccrc ccre ccrg ccrl cec- cece ceco ceeb ceec ceel cege cego cel- celc cele cell celo ceol ceor cer- cerc cere cerl cero cgcc cgcg cgel cger cgro clec clee cleg cleo cler clob cloe clog cloo clor clro cobb cobe cobo coce coco coel cogo col- colb cole coll colo coob cool cor- corb corc core corg corl coro corr crbc crcc crce crcr cre- creb crec cree creg creo crob croc croe crol croo cror e-cl ebbc ebbo ebbr ebcc ebel eber eboe ebol eboo ebor ebro ecbc ecbe eccb eccc ecce eccl ecco eco- ecog ecol ecrc ecrl ecrr eeee eele eeoc eerc eerg eero egbe egcc egcg egcr egec egee egel eger eggb egge eggo eglc egle ego- egol egor egre el-b elbe elbo elcb elce elco elec elee eleo eler elgg elle ello elog elro eole eolo eore eorl erbb erbe ercc erce ereb erec erel erer erg- ergg ergo erle erll erob eroc eroe erol eroo errc erre erro gbbo gc-c gcbc gccc gclc gcrg gebe gece geel geer gege gegg gegl gego gelb gele gelg gell gelo geo- geog geol gerb gere gerl gero ggcl gggg glbc glcc glce gleb glee gleg gleo glge glob glog glor glrb glro gobe gobl gobo goce gocr goel goer gogo gole goll golo goog gool goor gorb gore gorg goro gorr grbr grcc grce greb grec gree greg grob groc grog grol groo gror grrl grrr lbcc lblr lcbc lccc lcce lcer lcor lcrg lcrl lebo lece leco leel leer lege legg lego lele lell lelo leoc leog leor lerc lere lero lger llcc llgc lllc llll lloc lloo lob- lobb lobe lobo locc loce loco loeb log- logb loge logo lole loll lolo loob looc looe lool loor lore loro lrgb lroc lrrc lrrr o-eo obbo obec obel ober oble oboe obol obor obre obro ocbc occc oce ocee oclc ocre ocrl ocro ocrr oec- oecc oeec oegb oele oere ogb ogbe ogee ogel oger ogge ogle ogog ogre ogro olbo olcc ole- oleg oleo oler olgc olgr olle ollo olog olor oobe oocr ooer oolo oooo oore orbb orbe orbo orce orco ore- oreb orec oreg orel oreo orer orge orgo orle orlo oro- oroe oror orro rbbb rbbr rbcl rble rcbc rcbo rccb rccc rcgc rcle rcrg rebb rebe rebo recc rece recr reeb reel rege regl rego regr relb rele rell relo reog reol rere rerg rero rgbe rlcg rlee rob- robb robe robo rocc roce roco roeg roel roer roge rogg rogo role roll rolo roob roog rool roor rorc rore roro rrle rrrr