bbbb bbeb bbrg bebb bebe bebo beeb beef beeg beer befe beff befo begg bego beo- beof beor bere berg bero berr bfgf bobb bobe bobo boee boef boeo boer bofe boff boge bogg bogo boob booe boof boog boor bor- bore borf borg boro borr breb bree bref breg breo brer brob broe brog broo bror brrr ebbo ebbr eber eboe eboo ebor ebro eeee eefe eerg eero ef-g efbr efeo efor egbe egee eger egfr eggb egge eggo ego- egor egre eore erbb erbe ereb erer erg- ergg ergo erob eroe eroo erre erro febo feeb feer fefe feff fefo fege fegg feof ferb fere fero ferr ffee ffff ffrr foer fofo foge fogg fogo foof for- forb fore forg foro forr free freo frob froe frog gbbo gebe geer gefe gege gegg gego geo- geof geog gerb gere gero gfer gfor ggfg gggg gobe gobo goef goer gofe goff gofr gogo goof goog goor gorb gore gorf gorg goro gorr grbr greb gree gref greg grob grof grog groo gror grrr o-eo obbo ober oboe obor obre obro oegb oere ofer off- offe offo offr ofgo ofor ofre ogb ogbe ogee oger ogfr ogge ogog ogre ogro oobe ooer ooff oooo oore orbb orbe orbo ore- oreb oreg oreo orer orfe orff orge orgo oro- oroe orof oror orro rbbb rbbr rebb rebe rebo reeb reef refe reff refg refr rege rego regr reof reog rere rerg rero rfef rgbe rob- robb robe robo roeg roer rofe roff rofo roge rogg rogo roob roof roog roor rore roro rrrr