bbbb bbdd bbdo bbwr bd-r bnor bnrr bnwt bobb bobo bobu bobw bodb bodo bodu bond bonn bono bont bonu boob bood boon boor boot boow bor- bord born boro borr bort boru borw botb botd botn boto bott botw boud boun bour bout bouw bowd bown bowr bowt brdo brdt brno brob brod bron broo bror brot brou brow brrr brud brun brut btdt btob btor btrt bttb btwn btwo bubb bubo bubu budb budd budo budu bunb bund bunn buno bunt bunu buon bur- burb burd burn buro burr burt buru but- buto butt d-bo dbrn dbtt dddd ddot ddub dntt dnut dobb dobu dod- dodd dodo dond donn dono donr dont doob dood doon door doot dord dorn doro dorr dort doru dotd doto dott doub doud doun dour dout douw dowb dowd down dowr dowt drno drob drod dron drot drou drow drub drut druu dtnb dtor dtot dub- dubb dubu dudd dudo dudu dunn duno dunt duo- duon durn duro durt duru duur duut dwbr dwdd dwdu dwnu dwon dwor dwrd dwrt dwrw dwun dwww nbbo nddb nddo ndnt ndor ndut nndb nnnn nnot nntn nobo nobu nodo nodu non- nonn nono nont nonu nonw noo- noob noon nooo noor noot nor- norb nord norn noro norr nort norw not- noto nott notw noun nour nout nowd nown nowt nron nrrd ntnd ntnu ntru ntto nttr ntwt nudd nudo nunn nuno nunt nuon nurd nurn nurr nurt nuru nutt nutu nwbn nwbw obbo obdt obon obor obot obro obtd odbo oddd odnb odon odoo odor odot odou odtu odur ondo onno onod onon onor ont- onto onur onut oont oooo oord oort ootb ootw orbb orbo orbu ordn ordo ordu orno oro- oron oror orot orro orto orub orwo otbd oto- oton otoo otor otow otro otto ottu otur otwo oun- ound our- ourn ouro ourt out- outb outo ouu- ownd owow owt- owtt owur rbbb rbbr rnbr rnnt rnod rnot rntd rnut rob- robb robo robt robu rodd rodo rodw rond rono ront ronw roob rood roon roor root roro rort roru rotn roto rotr rott roub roud roun rout rowb rowd rown rowr rowt roww rrrr rrun rtdt rtnd rubb rubu rudd rudo rund runn runo runt rurd ruro ruru ruto rutt rutu ruud ruun tbrb tddb tdor tndd tnut tobo tobt tobu todd todo todt todu tonb tonn tono tonu tood toon toor toot tord torn toro torr tort toru totd toto totr tott toun tour tout town trno trod tron troo trot trou trow trtr trub trud trun trut truu ttbb tton tttt tubb tubo tubr tubu tudu tunb tund tunn tuno tunu tuor turb turd turn turo turr turt turu tuto tutt tutu tuuo twbt twdt twnt two- twob twod twon twoo twot twrn ubbo ubod ubon ubud udon udoo udot udun unbd undo unno unon unro untb unto unut uor- urdu uro- uroo urun urur urut utor utto uttu utwo uuno uuuu wbbb wbbd wbbn wbbo wbbr wbbt wbbw wbdr wbdt wbnb wbnr wbnw wbob wbon wbor wbow wbrb wbrd wbrn wbrr wbrt wbru wbrw wbtn wbto wbtr wbtt wbtu wbtw wbud wbut wbuw wbwb wbwn wbwo wbwt wdbd wdbn wdbo wdbr wdbt wddd wddo wddw wdnb wdnd wdno wdnr wdnt wdod wdor wdow wdrb wdrr wdrt wdru wdtb wdtn wdtr wdtw wdub wdun wdur wdwd wdwn wdwr wnbb wnbn wnbr wnbt wnbu wnbw wndb wndd wndn wndr wndt wndu wnnd wnnr wnnw wnob wnoo wnor wnow wnrn wnrr wnrt wnrw wntd wntn wnto wntr wntt wntw wnuw wnwn wnwr wnwt wnww wobb wobn wobo wobt wodb wodd wodt wonb wond wonn wont wonu wonw woob wood woon woot woow worb word worn woro worr wort worw wotb wotr wott wotw woub woud wour wout wouw wowb wown wowo wowt woww wrbb wrbn wrbo wrbt wrbu wrbw wrdb wrdd wrdn wrdo wrdr wrdt wrdu wrdw wrnb wrnd wrnn wrno wrnr wrnt wrnw wrob wrod wron wroo wrot wrow wrrb wrrd wrrn wrro wrrw wrtb wrto wrtr wrtu wrtw wrub wrwb wrwd wrwn wrwr wtbb wtbn wtbo wtbr wtbu wtdr wtnn wtnr wtnt wtnw wtob wtod wton wtor wtot wtou wtow wtrb wtrn wtro wtrt wtru wtrw wttb wttn wtto wttr wttt wttu wttw wtwb wtwo wtwr wtwt wtww wubb wubr wubt wubu wudd wudr wudu wund wuno wunr wunt wunw wuot wur- wurb wurd wurn wurt wutb wutr wutu wuub wuuu wwbb wwbd wwbn wwbr wwbt wwbu wwdb wwdn wwdr wwdw wwnb wwnn wwno wwnr wwnt wwnw wwod wwon wwor wwot wwow wwrb wwrd wwrr wwru wwrw wwtd wwtn wwtr wwtw wwwn wwwr wwww