bbbb bbdd bbdo bbin bd-r bdii bdin bibb bibi bibo bidi bido bidr bidu biin bin- bind bini binn bino bint binu bio- bioi bion biot biou birb bird biri birn biro birr birt biru bitd bito bitt bitu bnib bnin bnor bnrr bobb bobi bobo bobu bodb bodi bodo bodu boi- boid boii boin boit boiu bond boni bonn bono bont bonu boob bood boon boor boot bor- bord bori born boro borr bort boru botb botd boti botn boto bott boud boun bour bout brdo brdt brid brin brio brit brno brob brod bron broo bror brot brou brrr brud brun brut btdt btob btor btrt bttb bubb bubi bubo bubu budb budd budi budo budu buid buin buir buit buiu bunb bund buni bunn buno bunt bunu buon bur- burb burd buri burn buro burr burt buru but- buti buto butt d-bo dbit dbrn dbtt dddd ddot ddub dibb dibo didi dido didu diii din- dini dinn dino dint dinu dion dior diot diou dird dirr dirt diti dito ditt dntt dnut dobb dobi dobu dod- dodd dodi dodo doid doin doit dond doni donn dono donr dont doob dood doon door doot dord dori dorn doro dorr dort doru dotd doti doto dott doub doud doun dour dout drib drin drit drno drob drod dron drot drou drub drui drut druu dtnb dtor dtot dub- dubb dubu dudd dudo dudu duid duin duir duit dunn duno dunt duo- duon duri durn duro durt duru duur duut i-no ibdo ibid ibon ibot ibrd ibri ibro ibtb iddo idid idin idio idir idno idon idro idub idun iduo iiii iiio iiit iino iioi iioo iitr iitt inbd inbo ind- indi indo indu inid init inni inno innr innu ino- inoi inon inor inot inou inri inro intd inti intn into intr intu inui inun iobi iod- iodd iodo ioii ioio ioit ioni ionn iono iooi iooo iori ioto ioun irdo iri- irid irin irio irob irod iron irri irti irun itdo itin itno itoi iton itoo itor itou itri itto itur iuiu iuno n-ii nbbo nbti nddb nddo ndnt ndor ndri ndut nibi nibo nidd nidi nido niir niit niiu nind nini nino nion nioo niou niro nirt niru nitb niti nito nitr niur nndb nnit nnnn nnot nntn nobi nobo nobu nodi nodo nodu noib noid noin noio noir noit non- noni nonn nono nont nonu noo- noob noon nooo noor noot nor- norb nord nori norn noro norr nort not- noti noto nott noun nour nout nron nrrd ntnd ntnu ntru ntto nttr ntui nubi nudd nudi nudo nuin nuit nunn nuno nunt nuon nurd nuri nurn nurr nurt nuru nutt nutu obbo obdt obid obin obit oboi obon obor obot obri obro obtd odbo oddd oddi odin odio odir odiu odnb odon odoo odor odot odou odtu odur oido oiii oint oion oirt oiti ondi ondo onir onit onni onno onod onon onor ont- onti onto onur onut oobi oodi ooid oont oooo oord oort ootb orbb orbi orbo orbu ordn ordo ordu ori- orid orin orio orit orni orno oro- oron oror orot orri orro orto orub otbd otin otit oto- oton otoo otor otro otti otto ottu otur ouii ouin ouir ouit oun- ound our- ourn ouro ourt out- outb outi outo ouu- rbbb rbbr rdio rib- ribo ribu ridd ridi rido riin rind rinn rino rion riot riou riri riti rito ritt ritu rnbr rnin rnnt rnod rnot rntd rnut rob- robb robi robo robt robu rodd rodi rodo roid roin roio roir roit roiu rond roni rono ront roob rood rooi roon roor root rori roro rort roru roti rotn roto rotr rott roub roud roun rout rrrr rrun rtdt rtnd rubb rubi rubu rudd rudi rudo ruid ruin ruit rund runi runn runo runt rurd ruri ruro ruru ruti ruto rutt rutu ruud ruun tbit tbrb tddb tdor tdri tibi tibu tidd tiit tiiu tind tini tinn tino tint tinu tion tiou tirb tird tiri tiro tirr tiru titi tito titt titu tndd tnut tobi tobo tobt tobu todd todi todo todt todu toid toit tonb toni tonn tono tonu tood toon toor toot tord tori torn toro torr tort toru totd toti toto totr tott toui toun tour tout tri- trib trin trio trit trno trod troi tron troo trot trou trtr trub trud trun trut truu ttbb tton tttt tubb tubo tubr tubu tudi tudu tuin tuit tuiu tunb tund tuni tunn tuno tunu tuor turb turd turi turn turo turr turt turu tuti tuto tutt tutu tuuo ubbi ubbo ubid ubii ubir ubit ubod ubon ubud uddi udid udin udir udon udoo udot udun uint uirr unbd undi undo uni- unii unin unio unir unit unni unno unon unro untb unto unut uor- urbi urdu urib urin uriu urni uro- uroo urri urun urur urut utid utin utor utri utti utto uttu uuni uuno uuri uuuu