-er b-u bbb bbe bbk bbo bbr bbu bbx be- beb bee bek beo ber beu bex bjj bjk bjr bju bkb bke bkk bko bkr bkx bob boe boj bok boo bor bou box brb bre brj brk bro brr bru brx bub bue buj buk buo bur buu bux bxb bxj bxo bxx ebb ebe ebj ebk ebo ebr ebu ebx eeb eee eek eeo eer eex ejo eju ekb eke eko ekr eku eo- eob eoe eok eoo eor eou erb ere erk ero err eru eu- eub eue euj eur eux ex- exe exo exr exu exx jbj jbk jbo jbr jbu jeb jee jej jek jeo jer jeu jjb jjj jjk jjr jju jkb jkk jko jkr jku jkx job joe joj jok joo jor jou jrb jrk jro jrr jub jue juk juo jur kbb kbe kbk kbo kbr kbu kbx ke- keb kee kek keo ker kex kjb kje kjr kju kkb kke kkk kkr kku kob koe kok koo kor kou krk kro krr kru kub kue kuj kuk kur kuu kxo ob- obb obe obj obk obo obr obu obx oeb oee oeo oer oex ojb oje ojo oju okb oke okj okk oko okr oku oo- oob ook ooo oor oox or- orb ore ork oro orr oru orx ou- oue ouk ouo our ox- oxb oxo oxx rbb rbe rbk rbo rbr rbu rbx re- reb ree rek reo rer reu rex rjk rjr rkb rke rkk rko rku rob roe roj rok roo ror rou rox rrb rrk rrr rru rub rue ruk ruo rur ruu rux rxr ubb ube ubk ubo ubr ubu ubx ueb uee uer ujo ukb uke ukk ukr uku uob uoe uoj uok uoo uor uox ur- urb ure urk uro urr uru urx uue uur uuu uxb uxo uxr uxu xbe xbr xbx xee xer xeu xex xjo xkb xke xok xoo xor xox xrx xue xxo xxx

bbbb bbeb bbox bebb bebe bebo beeb beej beek beer beke beko beo- beok beor bere berk bero berr beru beuk beur beux bobb bobe bobo bobu boee boeo boer bojo boju boke boko boku boob booe book boor boox bor- bore borj bork boro borr boru boue bouk bour breb bree brek breo brer brex brje brkb brob broe brok broo bror brou brox brrr brue brux bubb bube bubo bubu buer bueu buje bujo buju buke bukk buko buku bur- burb bure burj burk buro burr buru ebbo ebbr eber eboe eboo ebor ebox ebro ebru ebur eeee eeke eero ejer ejob ejoo ekeb ekek eker ekur eore eoux er-x erbb erbe ereb erer erke erob eroe eroo erre erro erub erur euer eur- eure euro exer exo- exor exrx j-ro j-xx jbob jebb jebe jeer jeju jeke jeok jere jerk jero jeru jeuk jeur jeux jobe jobo jobu joee jojo jokb joke jook joor joox jore jork joro jouk jour joux jrbr jube jubu juju juke juku juok jure jurr kbbb kbbe kbbk kbbo kbbr kbbu kbeb kbee kbek kbeo kber kbex kbjk kbkb kbkk kbko kbkr kbob kboe kbok kboo kbox kbrb kbre kbrj kbrk kbro kbru kbrx kbub kbue kbuk kbur kbuu kbux kbxb kbxr kbxx kebb kebe kebr kebu keek keer kejb kejj kejo kekb keke keko keku keoj keok ker- kerb kere kerk kero kerr keru kerx keur kexb kexo kexx kjbb kjbr kjbx kjee kjer kjjj kjjk kjjo kjjr kjke kjkj kjkk kjoe kjoj kjok kjor kjox kjrb kjxj kjxk kjxx kkbb kkbe kkbj kkbo kkbr kkex kkjb kkjk kkkj kkkk kkob kkoj kkoo kkor kkrb kkre kkrk kkro kkrr kkrx kkuu kkxk kkxx kobb kobe kobk kobo kobr kobu kojb koje kojo kokb koke kokk koko kokr koku kokx koob kook kooo koor koou korb kore kork koro korr koru koub koue kour kouu koxe koxr krbb krbe krbk krbr krbx kreb kree krej krek kreo kreu krex krjb krje krjk krjo krke krkk krko krkr krku krkx krob kroe krok kroo kror krox krrb krre krrk krro krrr krrx krue kruk krur krux krxb krxk krxo krxr krxx kubb kube kubj kubo kubr kubu kuek kueu kuje kujj kujo kuju kuke kukk kuku kuok kuoo kurb kure kurk kuro kurr kuru kuub kuuk kuur kuuu kuxx kxbj kxbr kxbx kxeo kxex kxjk kxkk kxku kxkx kxok kxoo kxor kxox kxrb kxre kxrj kxrk kxro kxrr kxrx kxxe kxxj kxxk kxxo kxxr kxxx o-eo obbo ober obex obkb oboe obok obor obox obre obro oere ojeu ojok okej oker okko okok okor okre okro okur oobe ooer ooku oooo oore orbb orbe orbo orbu ore- oreb orek oreo orer orex orke orko oro- oroe orok oror orro orub oruj ouer ouju our- oure ouro ouu- oxer oxo- oxox oxxo rbbb rbbr rebb rebe rebk rebo rebu reeb reek reke reko reou rere rero reru reue reuk reuu reux rexx rob- robb robe robo robu roer roje rojo roke rokk roko rokr roku roob rook roor roox rore rork roro roru roub roue rouk roux roxo rrrr rubb rube rubu ruer ruke rukk ruku ruok rure ruro ruru ubbe ubbo ubek uber ukek ukeu ukko ukok ukur uoke uor- uore urbe ure- urex urke uro- urok uroo urox urre uruk urur uuuu uxor uxue xbee xbox xeer xejb xeko xer- xero xexe xojo xoro xoxo xuxu xxxo xxxx

b-r-k bbbee bbook be-er be-ro bebek beber bebox beebe beeke bejou beker bekke bekko bekok beour berbe berek berk- berke berko berob beroe berok beror berre berru beuer beure bjork bo-bo bobek bobko bobok bobr bobre boeke boero boeur bojer bokeo boker bokko bokok bokor booer booke booko boore booru borbo boree borek borer borex borje borko borku boro- borok boroo borou borox borre borro bouee bouer bouex bouke bouko boure boxbe boxee boxer bre-x brebu breek breer brejo breke breo- brere breu- breux brobo broek broer broje broke brook broue brouk brrrr bruer brujo bruke bubbe buber bujeo bujor bujru buker bukk- bukor buoux burek burke buroo