bbbb bbdd bbdo bbin bblb bd-r bdii bdin bibb bibi bibl bibo bidi bido bidr bidu biin bild bili bill bilo bilu bin- bind bini binn bino binu bio- bioi biol bion biou birb bird biri birl birn biro birr biru bldr blin blio blir blni blno blob blod blon bloo blou blub blud blur bnib bnin bnor bnrr bobb bobi bobo bobu bodb bodi bodo bodu boi- boid boii boil boin boiu bold boli boll boln bolo bolu bond boni bonn bono bonu boob bood bool boon boor bor- bord bori born boro borr boru boud boul boun bour brdo brid bril brin brio brno brob brod brol bron broo bror brou brrr brud brun bubb bubi bubo bubu budb budd budi budl budo budu buid buin buir buiu bulb buld buli bull bulu bunb bund buni bunn buno bunu buol buon bur- burb burd buri burl burn buro burr buru d-bo dbnl dbrn dddd ddub dibb dibo didi dido didu diii dili dill dilo din- dini dinn dino dinu diol dion dior diou dird dirl dirr dlbd dlib dlii dlil dobb dobi dobl dobu dod- dodd dodi dodo doid doil doin dold doli doll dolo dolu dond doni donn dono donr doob dood dool doon door dord dori dorn doro dorr doru doub doud doul doun dour drib dril drin drno drob drod drol dron drou drub drui druu dub- dubb dubu dudd dudo dudu duid duil duin duir duli dull dulo dulu dunn duno duo- duon duri durn duro duru duul duur i-no ibdo ibid ibon ibrd ibri ibro iddo idid idil idin idio idir idli idno idol idon idro idub idun iduo iiii iiio iino iioi iioo ilin ilio ilir ill- illd illi illo ilni ilno iloo ilud inbd inbo ind- indi indo indu inid inni inno innr innu ino- inoi inol inon inor inou inri inro inui inul inun iobi iod- iodd iodo ioii ioio iolo ioni ionn iono iooi iooo iori ioun irdo iri- irid iril irin irio irlb irob irod iron irri irul irun iuiu iuno lblr libo libr libu lidb lidl lido liii liin liir lilb lili lill lilo lilu lind linn lino lio- liod lion lior lird liri lirl lirn liro lirr liru liun lldb llll llod lloo llud lndn lob- lobb lobi lobo lodi loid loin loir loiu lold loli loll lolo lond loni lono lonr loob lood lool loon loor lord lori lorn loro loud loui loul loun lour louu lrdd lroi lron lrrr ludd ludi ludo luin luli lull lulu lund luni lunn luno lurd luri n-ii nbbo nddb nddo ndor ndri nibi nibo nidd nidi nido niir niiu nild nili nill nilo nilu nind nini ninl nino nion nioo niou niro niru niur nlrb nndb nnnn nobi nobo nobu nodi nodo nodu noib noid noil noin noio noir nold noli noll nolo non- noni nonn nono nonu noo- noob nool noon nooo noor nor- norb nord nori norn noro norr noul noun nour nrlb nron nrrd nrrl nubi nubl nudd nudi nudo nuin nuli null nunn nuno nuon nurd nuri nurl nurn nurr nuru obbo obid obin oblu oboi obol obon obor obri obro odbo oddd oddi odin odio odir odiu odnb odon odoo odor odou odrl odur oido oiii oion olbo oldb oldn olib olid olin olio olli ollo olon olor olur ondi ondo onil onir onni onno onod onon onor onur oobi oodi ooid oold oolo oooo oord orbb orbi orbo orbu ordn ordo ordu ori- orid oril orin orio orlo orlu orni orno oro- oron oror orri orro orub ouii ouin ouir ould oulu oun- ound our- ourn ouro ouu- rbbb rbbr rdio rib- ribo ribu ridd ridi rido riin rill rilo rilu rind rinn rino riol rion riou riri rlin rnbr rnin rnld rnli rnod rob- robb robi robo robu rodd rodi rodo roid roil roin roio roir roiu rold roll rolo rond roni rono roob rood rooi rool roon roor rori roro roru roub roud roul roun rrrr rrun rubb rubi rubu rudd rudi rudl rudo ruid ruin rull rulo rund runi runn runo rurd ruri ruro ruru ruud ruun ubbi ubbo ubid ubii ubir ubli ublo ubod ubon ubud uddi udid udin udir udon udoo udun uirr ulli ullo ullr ulno ulo- ulul unbd undi undo uni- unii unin unio unir unni unno unon unro uor- urbi urdu urib urin uriu urni uro- urol uroo urri urun urur uulu uuni uuno uuri uuuu