-er b-u bbb bbd bbe bbo bbr bbu bdb bdd bde bdo bdr bdu bdv be- beb bed bee beo ber beu bev bob bod boe boo bor bou bov brb brd bre bro brr bru brv bub bud bue buo bur buu bvb bvd bve bvo bvr bvu bvv dbb dbd dbe dbo dbr dbu dbv ddb ddd dde ddo ddr ddu de- deb ded dee deo der deu dev dob dod doe doo dor dou dov drb drd dre dro drr dru drv dub dud due duo dur duv dvb dvd dve dvr dvu ebb ebd ebe ebo ebr ebu ebv ed- edb edd ede edo edr edu eeb eed eee eeo eer eev eo- eob eod eoe eoo eor eou erb erd ere ero err eru erv eu- eub eud eue eur euv evb evd eve evo evr evv ob- obb obd obe obo obr obu obv odb odd ode odo odr odu odv oeb oed oee oeo oer oo- oob ood ooo oor oov or- orb ord ore oro orr oru orv ou- oud oue ouo our ov- ovb ovd ove ovo ovv rbb rbd rbe rbo rbr rbu rdb rdd rde rdo rdr rdu rdv re- reb red ree reo rer reu rev rob rod roe roo ror rou rov rrb rrd rrr rru rub rud rue ruo rur ruu ruv rvb rvd rve rvo rvr rvu rvv ubb ube ubo ubr ubu ubv udb udd ude udo udr udu udv ueb ued uee uer uob uod uoe uoo uor ur- urb urd ure uro urr uru uue uur uuu uvb uve uvo uvu uvv v-e vbd vbo vbr vbv vdb vdd vde vdo vdr vdu vdv veb ved vee veo ver veu vob vod voe voo vor vou vov vrb vrd vre vrr vru vue vur vuv vvb vvo vvr vvv

bbbb bbdd bbdo bbeb bd-r bebb bebe bebo bede bedo bedu beeb beed beer beo- beod beor berd bere bero berr beru beur bevo bobb bobe bobo bobu bodb bode bodo bodu boee boeo boer boob bood booe boor bor- bord bore boro borr boru boud boue bour bove bovo brdo breb bred bree breo brer brev brob brod broe broo bror brou brrr brud brue bruv bubb bube bubo bubu budb budd bude budo budu buer bueu bur- burb burd bure buro burr buru buvd buve bvdu d-bo dddd ddre ddub debe debu dedd dede dedo dedu deeb deed deer deev deor der- derb dere dero derr derv deue deur deve devo dobb dobe dobu dod- dodd dode dodo doer doob dood door dord dore doro dorr doru doub doud doue dour dove dred dree drev drob drod drou drub drue druu druv dub- dubb dube dubu dudd dude dudo dudu duer duo- dure duro duru duur duve dvdr dvor ebbo ebbr ebed eber eboe eboo ebor ebro ebru ebur edde eddo ede- eder edod edou edru edur edve eede eedu eeee eero eode eore erbb erbe erde ereb ered erer erev erob erod eroe eroo erre erro erub erur eruv erve eude euer eur- eure euro evdb ever evoe evoo evre o-eo obbo obed ober oboe obor obre obro odbo oddd oded odeo oder odoo odor odou odur oedo oere oobe ooer oooo oord oore orbb orbe orbo orbu orde ordo ordu ore- oreb ored oreo orer oro- oroe oror orro orub orve orvr oude oued ouer our- oure ouro ouu- ovde ovee over ovo- ovod ovoo ovre rbbb rbbr rder rdev rebb rebe rebo rebu redd rede redo redr redu reeb reed reev reod reou rerd rere rero reru reue reuu revd reve revo rob- robb robe robo robu rodd rode rodo roed roer roev roob rood roor rore roro roru roub roud roue rove rovo rred rrrr rubb rube rubu rudd rude rudo rued ruer rurd rure ruro ruru ruud ruve ruvu rved rver ubbe ubbo uber ubod ubud uder udev udoo uor- uore uovo urbe urde urdu ure- ured uro- uroo urre urur urve uuuu uv-b uver uvrd uvvu vder vdre vdub vede vedo veer veor ver- verb verd vere vero veur veve vevo vode vodo voer voeu voor vor- vord vore voro voru voud voue vour vred vreo vudu vurb vver vvob vvvv

b-e-d bbbee bd-re bdoor be-er be-ro bebdo bebed beber bebod bedde bedee beder bedub bedue beebe beede beerd beeve beode beord beour berbe berde berdu bered berob beroe beror berre berru beuer beure beuve bever bevor bevue bo-bo bobov bobr bobre bodd- boded boder bodoe bodor boedo boero boeur boode booed booer boord boore booru borbo borde bordo bored boree borer boro- borod boroo borou borov borre borro borve borvo boudu boued bouee bouer bourd boure bovee brebu bredd brede breed breer breo- brerd brere breu- breve brobo brodd brode brodo broer brood broud broue brrrr brud- brude brued bruer bubbe buber budde buddu budur buord burde buroo burov burro burru burud bvdub d-rev d-rod ddddd ddebo debed deber debro dedde dedee deder dedur deede deere deeve deore deoro derbe derde dered dero- derob derre derro derub derue derve deure dever devoe devor devro do-do dobee dober dobev dobre dobro dodoo dodro doerr doodo doore dored doree dorre dorud doude douer doure douro douve dover dovev dovre drbob drdre dredd drede dreed drere dreve drobe drobo drode drood droue drove drude dubbo dubee dubov duddo duded duder dudou duere duerr durbe dured duree durer durov durre duvbo duved duver dvd-d dvd-r e-dee ebbed ebber eboue ebure edder eddoe eddre edeo- edere edoor edred eeeee eerde eevee eever eorre erbbe erber erdor erdre erede erere ereve erode erodr eroor erore erred error eubro euro- eurre evdev evere evero everr eveve evoor evour o-r-b obodo oboro oboue obreb obrov obudu odder oddur odebo odeur odore odour odudu odure oduro oo-er ooooo oovoo orbed order ordre ordro oredo oreed oreo- orere orero orobe orobo orodo oroer orube oruro ouder ouedo ouoro ourde oure- ouver ouvre over- overo rdovo rebbe reber rebud redbd redde reder redor redub redur