bbbb bbdd bbdo bbeb bblb bbwr bd-r bdle bebb bebe bebo bede bedl bedo bedu beeb beed beel beer beld bele bell belo belu belw beo- beod beor berd bere bero berr beru beur bewe bldr bleb bled blee bleo bleu blew blob blod bloo blou blow blub blud blue blur blw- bobb bobe bobo bobu bobw bodb bode bodo bodu boee boel boeo boer bold bole boll bolo bolu boob bood booe bool boor boow bor- bord bore boro borr boru borw boud boue boul bour bouw bowd bowe bowl bowr brdo breb bred bree brel breo brer brew brob brod broe brol broo bror brou brow brrr brud brue brwe bubb bube bubo bubu budb budd bude budl budo budu buel buer bueu bulb buld bule bull bulu buol bur- burb burd bure burl buro burr buru buwe d-bo dddd ddre ddub debe debu dedd dede dedo dedu deeb deed deel deer deld dele dell delo deol deor der- derb dere dero derr deue deul deur dewe dlbd dlow dlwr dobb dobe dobl dobu dod- dodd dode dodo doel doer dold dole doll dolo dolu doob dood dool door dord dore doro dorr doru doub doud doue doul dour douw dowb dowd dowe dowl dowr dred dree drel drew drob drod drol drou drow drub drue druu dub- dubb dube dubu dudd dude dudo dudu duel duer dule dull dulo dulu duo- dure duro duru duul duur dwbe dwbl dwbr dwdd dwdl dwdu dwer dwle dwll dwlw dwor dwrd dwrl dwrw dwwe dwww ebbo ebbr ebbw ebed ebel eber eboe ebol eboo ebor ebow ebro ebru ebul ebur edde eddo ede- edel eder edle edod edou edru edur eede eedu eeee eele eero el-b elbe elbo elbu elde eldr eled elee eleo eler elle ello ellu elod elro elue elul eode eole eolo eore eorl erbb erbe erde ereb ered erel erer erew erld erle erll erob erod eroe erol eroo erre erro erub erur eude euer eule eur- eure euro euwe ewer ewew ewle ewre lblr ldeo le-u lebd lebo lebu lede ledo leed leel leer lele lell lelo lelu leod leor leou lerd lere lero leud leur lewd lewe lldb lleu llew llll llod lloo llud lob- lobb lobe lobo lode loeb loeu loew lold lole loll lolo loob lood looe lool loor lord lore loro loud loue loul lour louu louw lowb lowd lowe lowl lowr lowu loww lrdd lrrr lube ludd lude ludo lued luer lule lull lulu lurd lure luwo luwr luwu lwoo lwow o-eo obbo obed obel ober oble oblu oboe obol obor obre obro odbo oddd oded odel odeo oder odle odoo odor odou odrl odur oedo oele oere olbo oldb olde oldw ole- oled oleo oler olle ollo olor olur oobe ooer oold oolo oooo oord oore orbb orbe orbo orbu orde ordo ordu ore- oreb ored orel oreo orer orle orlo orlu oro- oroe oror orro orub orwe orwo oude oued ouer ould oule oulu our- oure ouro ouu- ouwe owed owel ower owld owoe owow owre owul owur rbbb rbbr rble rder rebb rebe rebo rebu redd rede redl redo redr redu reeb reed reel relb reld rele rell relo reod reol reou rerd rere rero reru reue reul reuu rewe rewl rlee rleu rob- robb robe robo robu rodd rode rodo rodw roed roel roer rold role roll rolo roob rood rool roor rore roro roru roub roud roue roul rowb rowd rowe rowl rowr roww rred rrle rrrr rubb rube rubu rudd rude rudl rudo rued ruel ruer rule rull rulo rurd rure ruro ruru ruud ruwe ubbe ubbo uber uble ublo ubod ubud udel uder udoo uele uell uewe ulde uleb ulee uleo ulle ullo ullr ulo- ulow ulul ulwe uor- uore urbe urde urdu ure- ured urle uro- urol uroo urre urur uulu uuuu uwer wbbb wbbd wbbe wbbl wbbo wbbr wbbw wbdl wbdr wbeb wbed wbel wber wbew wblb wbld wble wbll wblo wblu wblw wbob wbol wbor wbow wbrb wbrd wbrr wbru wbrw wbud wbul wbuw wbwb wbwl wbwo wdbd wdbl wdbo wdbr wddd wdde wddo wddw wdeb wded wdel wdeo wder wdlb wdld wdlr wdlw wdod wdoe wdor wdow wdrb wdre wdrr wdru wdub wdul wdur wdwd wdwl wdwr webb webd webe webl webo wedb wedd wede wedo wedr wedu wedw weeb weed weel weeo weer weeu welb weld wele well welo welr welu weod weol weow wer- werb werd were werl wero werr werw wewe wewo wlbb wlbe wlbl wlbr wlbw wldb wlde wldr wled wlee wlel wleo wlew wlld wlle wlll wllr wllw wlob wlod wloe wlol wloo wlor wlou wlrb wlrd wlro wlrr wlrw wlub wlue wlur wluw wlwd wlwe wlwl wobb wobe wobl wobo wodb wodd wode woed woel woer wolb wold wole woll wolr wolw woob wood wool woow worb word wore worl woro worr worw woub woud woul wour wouw wowb wowe wowl wowo woww wrbb wrbe wrbl wrbo wrbu wrbw wrdb wrdd wrdl wrdo wrdr wrdu wrdw wreb wred wree wrel wrer wrew wrlb wrld wrll wrlr wrlu wrob wrod wrol wroo wrow wrrb wrrd wrre wrrl wrro wrrw wrub wrul wrwb wrwd wrwr wubb wubl wubr wubu wudd wude wudr wudu wuld wule wull wulr wulu wur- wurb wurd wurl wuub wuuu wuwe wwbb wwbd wwbl wwbr wwbu wwdb wwdl wwdr wwdw wweb wwel wweo wwer wwlb wwld wwle wwll wwlr wwlu wwlw wwod wwol wwor wwow wwrb wwrd wwre wwrl wwrr wwru wwrw wwwe wwwl wwwr wwww