-er b-u bbb bbe bbg bbk bbo bbr bbu be- beb bee beg bek beo ber beu bgb bge bgg bgk bgo bgr bgu bkb bke bkg bkk bko bkr bob boe bog bok boo bor bou brb bre brg brk bro brr bru bub bue bug buk buo bur buu ebb ebe ebg ebk ebo ebr ebu eeb eee eeg eek eeo eer egb ege egg ego egr egu ekb eke ekg eko ekr eku eo- eob eoe eog eok eoo eor eou erb ere erg erk ero err eru eu- eub eue eug eur gbe gbg gbk gbo gbr gbu ge- geb gee geg gek geo ger geu ggb ggg ggo ggr ggu gkb gko gob goe gog gok goo gor gou grb gre grg grk gro grr gru gu- gub gue gug guk guo gur guu kbb kbe kbk kbo kbr kbu ke- keb kee keg kek keo ker kgb kgo kgu kkb kke kkk kkr kku kob koe kog kok koo kor kou krg krk kro krr kru kub kue kug kuk kur kuu ob- obb obe obg obk obo obr obu oeb oee oeg oeo oer oge ogg ogo okb oke okg okk oko okr oku oo- oob oog ook ooo oor or- orb ore org ork oro orr oru ou- oue ouk ouo our rbb rbe rbg rbk rbo rbr rbu re- reb ree reg rek reo rer reu rgb rge rgg rgk rgo rgr rkb rke rkg rkk rko rku rob roe rog rok roo ror rou rrb rrg rrk rrr rru rub rue rug ruk ruo rur ruu ubb ube ubg ubk ubo ubr ubu ueb uee ueg uer ugb uge ugg ugk ugo ugr ugu ukb uke ukk ukr uku uob uoe uog uok uoo uor ur- urb ure urg urk uro urr uru uue uug uur uuu

bbbb bbeb bbrg bebb bebe bebo beeb beeg beek beer begg bego begu beke beko beo- beok beor bere berg berk bero berr beru beuk beur bobb bobe bobo bobu boee boeo boer boge bogg bogo boke boko boku boob booe boog book boor bor- bore borg bork boro borr boru boue bouk bour breb bree breg brek breo brer brkb brob broe brog brok broo bror brou brrr brue brug bubb bube bubo bubu buer bueu buge bugg bugo buke bukk buko buku bur- burb bure burg burk buro burr buru ebbo ebbr eber eboe eboo ebor ebro ebru ebur eeee eeke eerg eero egbe egbu egee eger eggb egge eggo ego- egor egre ekeb ekek eker ekur eore erbb erbe ereb erer erg- ergg ergo erke erob eroe eroo erre erro erub erur euer euge eur- eure euro gbbo gebe geek geer gege gegg gego geko geo- geog gerb gere gero geru geue gggg gobe gobo goer gogo goke goku goog gook goor gorb gore gorg goro gorr gou- goug gouk gour grbr greb gree greg greu grob grog grok groo gror grou grrr grub grue grug grur gubb gubu 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 kbrb kbre kbrg kbrk kbro kbru kbub kbue kbuk kbur kbuu kebb kebe kebr kebu keek keer kege kegg kegk kegr kekb keke keko keku keok ker- kerb kere kerk kero kerr keru keug keur kgbb kgbr kgeb kgeo kggg kggo kggr kgoe kgor kgou kgrb kgre kgrg kgrk kgro kgrr kkbb kkbe kkbg kkbo kkbr kkeg kkgb kkgo kkgr kkkk kkob kkoo kkor kkrb kkre kkrk kkro kkrr kkuu kobb kobe kobk kobo kobr kobu kogb koge kogg kogo kogu kokb koke kokk koko kokr koku koob koog kook kooo koor koou korb kore korg kork koro korr koru koub koue kour kouu krbb krbe krbg krbk krbr kreb kree krek kreo kreu krke krkk krko krkr krku krob kroe krog krok kroo kror krrb krre krrg krrk krro krrr krue krug kruk krur kubb kube kubo kubr kubu kuek kueu kugb kuge kugo kugr kuke kukk kuku kuok kuoo 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 ogre ogro oker okgo okko okok okor okre okro okur oobe ooer ooku oooo oore orbb orbe orbo orbu ore- oreb oreg orek oreo orer orge orgo orke orko oro- oroe orok oror orro orub ouer ouge our- oure ouro ouu- rbbb rbbr rebb rebe rebk rebo rebu reeb reek rege rego regr regu reke reko reog reou rere rerg rero reru reue reuk reuu rgbe rob- robb robe robo robu roeg roer roge rogg rogo roke rokk roko rokr roku roob roog rook roor rore rork roro roru roub roue rouk rrrr rubb rube rubu ruer ruge rugg ruke rukk ruku ruok rure ruro ruru ubbe ubbo ubek uber ugeo uggo ugro ugur uguu ukek ukeu ukko ukok ukur uoke uor- uore urbe ure- urge urgu urke uro- urok uroo urre uruk urur uuuu

b-r-k bbbee bbook be-er be-ro bebek beber bebog beebe beeke begee begge begob begor begue begur beker bekke bekko bekok beour berbe bereg berek berge berk- berke berko berob beroe berok beror berre berru beuer beure bo-bo bobek bobko bobok bobr bobre boege boeke boero boeur boger bogge bogoe bogor bogu bogue bogur bokeo boker bokko bokok bokor booer booke booko boore booru borbo boree borek borer borge borgo borgu borko borku boro- borok boroo borou borre borro bouee bouer bouge bouke bouko boure bourg brebu breek breer breg- brege bregg breke breo- brere breu- brobo broek broer broke brook broue brouk brrrr bruer bruge brugg bruke bubbe buber buger bugge bugok bugoo bugre buker bukk- bukor burek burge burgk burgo burgu burke buroo burro burru buruk ebber ebeko eberg ebook eboue ebure eeeee egger egrek ekeko ekker ekuku ekuru eorre erbbe erber erege erere ergo- erkko eroge eroor