bbbb bbeb bbpr bbrg bebb bebe bebo beeb beeg beek beep beer begg bego begu beke beko beo- beok beor bepo bere berg berk bero berr beru beuk beur bkpg bkpr bobb bobe bobo bobu boee boeo boep boer boge bogg bogo boke boko boku boob booe boog book boop boor bope bopp bor- bore borg bork boro borr boru boue bouk boup bour bpoe breb bree breg brek breo brep brer brkb brob broe brog brok broo bror brou brrr brue brug brup bubb bube bubo bubu buer bueu buge bugg bugo buke bukk buko buku bur- burb bure burg burk buro burp burr buru ebbo ebbr eber eboe eboo ebor ebpo ebro ebru ebur eeee eeke eerg eero egbe egbu egee eger eggb egge eggo eggp ego- egor egpb egpe egpo egre ekeb ekek eker ekpe ekpo ekur eore epee eper epor eppo eppp eprb epro eprp epub erbb erbe ereb erer erg- ergg ergo erke erob eroe eroo erpe erre erro erub erur euer euge eur- eure euro gbbo gebe geek geep geer gege gegg gego geko geo- geog gepe gerb gere gero geru geue geup gggg ggpo gkrp gobe gobo goer gogo goke goku goog gook goop goor gope gopo gopu gorb gore gorg goro gorp gorr gou- goug gouk goup gour gper gpgp gprp grbr greb gree greg grep greu grob grog grok groo grop gror grou grrr grub grue grug grur gubb gubu guep guer gugb guge gugg gugu gurb gure gurg gurk guro gurr guru kbbb kbbe kbbg kbbk kbbo kbbr kbbu kbeb kbee kbek kbeo kber kbgb kbge kbgg kbgo kbgr kbkb kbkg kbkk kbko kbkr kbob kboe kbok kboo kbpe kbpg kbpk kbpo kbpr kbpu kbrb kbre kbrg kbrk kbro kbru kbub kbue kbuk kbup kbur kbuu kebb kebe kebr kebu keek keep keer kege kegg kegk kegr kekb keke keko keku keok kep- kepe kepu ker- kerb kere kerk kero kerp kerr keru keug keup keur kgbb kgbr kgeb kgeo kggg kggo kggr kgoe kgor kgou kgpe kgpg kgpr kgrb kgre kgrg kgrk kgro kgrr kkbb kkbe kkbg kkbo kkbr kkeg kkgb kkgo kkgr kkkk kkob kkoo kkor kkpk kkrb kkre kkrk kkro kkrr kkup kkuu kobb kobe kobk kobo kobr kobu kogb koge kogg kogo kogu kokb koke kokk koko kokp kokr koku koob koog kook kooo koop koor koou kopb kope kopp kopr kopu korb kore korg kork koro korr koru koub koue kour kouu kpbb kpbe kpbg kpbr kpek kper kpgb kpge kpgg kpgr kpke kpkk kpkr kpob kpoe kpok kpoo kpop kpou kppk kppo kppp kppr kprb kpre kprg kprk kpro kprp kprr kpru kpub kpug kpur krbb krbe krbg krbk krbr kreb kree krek kreo kreu krke krkk krko krkr krku krob kroe krog krok kroo krop kror krpr krpu krrb krre krrg krrk krro krrr krue krug kruk krup krur kubb kube kubo kubr kubu kuek kueu kugb kuge kugo kugr kuke kukk kuku kuok kuoo kuop kupb kupe kupr kupu kurb kure kurk kuro kurr kuru kuub kuuk kuur kuuu o-eo obbo ober obkb oboe obok obor obre obro oegb oere ogb ogbe ogee oger ogge ogog ogou ogpu ogre ogro oker okgo okko okok okor okpe okpo okre okro okur oobe ooer ooku oooo oore opep oper opkg opo- opor oppo orbb orbe orbo orbu ore- oreb oreg orek oreo orer orge orgo orke orko oro- oroe orok oror orpe orro orub orup ouer ouge oupe our- oure ouro ouu- pbpk peek peep peer pegg pego pegu peke pekk peko peor peou pepe pepo per- pere perg perk pero perp perr peru peur pger pgou pgpu pgup pkge pobo poer poge pogg pogo poke poko poku pook poop poor pop- pope popo popp porb pore porg pork poro porr pouk poup pour pper pppo pppp ppru ppur pre- preb pree preg prek prep preu pro- prob proe prog proo prop prou prue pruu pu-e pube pubu pueo puer pueu pugo pugu puke puku pupe pupu pur- purb pure purg puro purp purr puru rbbb rbbr rebb rebe rebk rebo rebu reeb reek reep rege rego regr regu reke reko reog reop reou repe repo repp repr repu rere rerg rero reru reue reuk reup reuu rgbe rob- robb robe robo robu roeg roer roge rogg rogo roke rokk roko rokr roku roob roog rook roop roor rope ropo rore rork roro roru roub roue rouk roup rpob rpoe rrrr rubb rube rubp rubu ruer ruge rugg ruke rukk ruku ruok rupe rupp rure ruro rurp ruru u-rp ubbe ubbo ubek uber ugeo ugep uggo ugro ugur uguu ukek ukeu ukko ukok ukup ukur uoke uor- uore upbe upgo upor uppe uppp uppu upup urbe ure- urge urgu urke uro- urok uroo urpo urre uruk urup urur uuuu