bbbb bbeb bbpr bbrg bebb bebe bebo beeb beeg beep beer begg bego behr beo- beor bepo bere berg bero berr bher bhog bhor bobb bobe bobo boee boeo boep boer boge bogg bogh bogo boho bohr boob booe boog booh boop boor bope bopp bor- bore borg borh boro borr bpoe breb bree breg breo brep brer brob broe brog broh broo bror brrr ebbo ebbr eber eboe eboo ebor ebpo ebro eeee eerg eero egbe egee eger eggb egge eggh eggo eggp eghe eghh ego- egor egpb egpe egph egpo egre eheh eher ehre eore epee eper eph- epor eppo eppp eprb epro eprp erbb erbe ereb erer erg- ergg ergh ergo erob eroe eroo erpe erre erro gbbo gebe geep geer gege gegg gego geo- geog gepe gerb gere gero gggg gghg ggpo ghee gheg gobe gobo goer gogh gogo gohb goog goop goor gope gopo gorb gore gorg goro gorp gorr gper gpgp gprp grbr greb gree greg grep grob grog groh groo grop gror grrr hebb hebe hebo hebr heeb heeg heep heer hege hegg hegh hego hehe heho heor hepe hepp herb here herg hero herp herr hhgg hhhh hobe hobo hoer hoge hogg hogh hogo hohe hoho hooe hoop hoor hope hopo hopp hore horg horo horr hpgp hppe hree hrob hrpp o-eo obbo ober oboe obor obre obrh obro oegb oere ogb ogbe ogee oger ogge ogog ogre ogro ohbe ohee oher ohgr ohho ohob ohoh ohre oobe ooer ooho oooh oooo oore opep oper opo- opor oppo orbb orbe orbo ore- oreb oreg oreh oreo orer orge orgo orhe oro- oroe oror orpe orph orro peep peer pegg pegh pego pehe peho pehr peor pepe pepo per- pere perg perh pero perp perr pger phe- phob phog phoh phoo phrr pobo poer poge pogg pogh pogo pooh poop poor pop- pope popo popp porb pore porg poro porr pper pppo pppp pre- preb pree preg prep pro- prob proe prog proo prop rbbb rbbr rbgh rboh rebb rebe rebo reeb reep rege rego regr rehb rehe reog reop repe repo repp repr rere rerg rero rgbe rhbg rheb rhee rheo rhob rhog rhoh rob- robb robe robo roeg roer roge rogg rogh rogo rohe rohr roob roog roop roor rope ropo rore roro rpho rpob rpoe rrrr