-er b-u bbb bbd bbe bbo bbr bbu bbx bdb bdd bde bdo bdr bdu bdx be- beb bed bee beo ber beu bex bob bod boe boo bor bou box brb brd bre bro brr bru brx bub bud bue buo bur buu bux bxb bxd bxo bxx dbb dbd dbe dbo dbr dbu dbx ddb ddd dde ddo ddr ddu ddx de- deb ded dee deo der deu dex dob dod doe doo dor dou dox drb drd dre dro drr dru drx dub dud due duo dur dux dxd dxo dxr dxx ebb ebd ebe ebo ebr ebu ebx ed- edb edd ede edo edr edu edx eeb eed eee eeo eer eex eo- eob eod eoe eoo eor eou erb erd ere ero err eru eu- eub eud eue eur eux ex- exd exe exo exr exu exx ob- obb obd obe obo obr obu obx odb odd ode odo odr odu oeb oed oee oeo oer oex oo- oob ood ooo oor oox or- orb ord ore oro orr oru orx ou- oud oue ouo our ox- oxb oxo oxx rbb rbd rbe rbo rbr rbu rbx rdb rdd rde rdo rdr rdu rdx re- reb red ree reo rer reu rex rob rod roe roo ror rou rox rrb rrd rrr rru rub rud rue ruo rur ruu rux rxr ubb ube ubo ubr ubu ubx udb udd ude udo udr udu udx ueb ued uee uer uob uod uoe uoo uor uox ur- urb urd ure uro urr uru urx uue uur uuu uxb uxo uxr uxu xbe xbr xbx xdb xde xdr xed xee xer xeu xex xod xoo xor xox xrd xrx xue xxo xxx

bbbb bbdd bbdo bbeb bbox bd-r bebb bebe bebo bede bedo bedu beeb beed beer beo- beod beor berd bere bero berr beru beur beux bobb bobe bobo bobu bodb bode bodo bodu boee boeo boer boob bood booe boor boox bor- bord bore boro borr boru boud boue bour brdo breb bred bree breo brer brex brob brod broe broo bror brou brox brrr brud brue brux bubb bube bubo bubu budb budd bude budo budu buer bueu bur- burb burd bure buro burr buru d-bo dddd ddre ddub debe debu dedd dede dedo dedu deeb deed deer deor der- derb dere dero derr deue deur deux dex- dexe do-x dobb dobe dobu dod- dodd dode dodo doer doob dood door dord dore doro dorr doru doub doud doue dour doux dred dree drob drod drou drub drue druu dub- dubb dube dubu dudd dude dudo dudu duer duo- dure duro duru duur dxbe dxbr dxdr dxed dxrd dxre dxrr dxrx dxue dxur dxxr dxxx ebbo ebbr ebed eber eboe eboo ebor ebox ebro ebru ebur edde eddo ede- eder edex edod edou edru edur eede eedu eeee eero eode eore eoux er-x erbb erbe erde ereb ered erer erob erod eroe eroo erre erro erub erur eude euer eur- eure euro exed exer exo- exod exor exrx o-eo obbo obed ober obex oboe obor obox obre obro odbo oddd oded odeo oder odex odoo odor odou odur oedo oere oobe ooer oooo oord oore orbb orbe orbo orbu orde ordo ordu ore- oreb ored oreo orer orex oro- oroe oror orro orub oude oued ouer our- oure ouro ouu- oxer oxo- oxox oxud oxxo rbbb rbbr rder rebb rebe rebo rebu redd rede redo redr redu redx reeb reed reod reou rerd rere rero reru reue reuu reux rexx rob- robb robe robo robu rodd rode rodo roed roer roob rood roor roox rore roro roru roub roud roue roux roxo rred rrrr rubb rube rubu rudd rude rudo rued ruer rurd rure ruro ruru ruud ubbe ubbo uber ubod ubud uder udoo udox uor- uore urbe urde urdu ure- ured urex uro- uroo urox urre urur uuuu uxor uxue x-ed xbee xbox xeer xer- xero xexe xoro xoxo xrdb xrod xuxu xxxo xxxx

b-e-d bbbee bd-re bdoor be-er be-ro bebdo bebed beber bebod bebox bedde bedee beder bedub bedue beebe beede beerd beode beord beour berbe berde berdu bered berob beroe beror berre berru beuer beure bo-bo bobr bobre bodd- boded boder bodoe bodor boedo boero boeur boode booed booer boord boore booru borbo borde bordo bored boree borer borex boro- borod boroo borou borox borre borro boudu boued bouee bouer bouex bourd boure boxbe boxed boxee boxer bre-x brebu bredd brede breed breer breo- brerd brere breu- breux brobo brodd brode brodo broer brood broud broue brrrr brud- brude brued bruer bubbe buber budde buddu budur buord buoux burde buroo burro burru burud d-box d-rod ddddd ddebo debed deber debro dedde dedee deder dedur deede deere deore deoro derbe derde dered dero- derob derre derro derub derue deure do-do dobee dober dobox dobre dobro dodoo dodro doerr doodo doore doorx dored doree dorre dorud doude douer doure douro doxed drbob drdre dredd drede dreed drere dreux drobe drobo drode drood droue droux drude dubbo dubee duddo duded duder dudou duere duerr durbe dured duree durer durex durre dxdxd e-box e-dee ebbed ebber eboue ebure edder eddoe eddre edeo- edere edoor edred eeeee eerde eorre erbbe erber erdor erdre erede erere erode erodr eroor erore erred error eubro eurex euro- eurre exede exode exorb exord exore exred exude exurb o-r-b obodo oboro oboue obreb obudu odder oddur odebo odeur odore odour odudu odure oduro oo-er ooooo orbed order ordre ordro oredo oreed oreo- orere orero orexo orobe orobo orodo oroer oroux orube oruro ouder ouedo ouoro ourde oure- oxdeb rebbe reber rebox rebud redbd redde reder redex redor redox redub redur redux reede reere reord reorx rerde rere- reree rerob reuer rexer ro-ro robbe robbo robed rober robo- robor robur rodbo rodde roded rodeo roder rodor roero roeux roode roodu rooer roore rooue rorbu rorer roude rouer roure rubee ruber rubor ruder ruede ruere rurde u-dub uber- uberx ubobo udder uouee urbex urdee uredo ureo- uroob urour urubu uuuuu x-box xbxrx xedre xerbo