b-u bbb bbd bbn bbo bbr bbt bbu bdb bdd bdo bdr bdt bdu bnb bnd bnn bno bnr bnt bnu bob bod bon boo bor bot bou brb brd brn bro brr brt bru btb btd btn bto btr btt btu bub bud bun buo bur but buu dbb dbd dbn dbo dbr dbt dbu ddb ddd ddn ddo ddr ddt ddu dnb dnd dnn dno dnr dnt dob dod don doo dor dot dou drb drd drn dro drr drt dru dtb dtd dtn dto dtr dtt dtu dub dud dun duo dur dut nbb nbd nbn nbo nbr nbt nbu ndb ndd ndn ndo ndr ndt ndu nnb nnn nno nnt nnu no- nob nod non noo nor not nou nrb nrd nrn nro nrr nrt nru ntb ntd ntn nto ntr ntt ntu nub nud nun nuo nur nut nuu ob- obb obd obn obo obr obt obu odb odd odn odo odr odt odu on- onb ond onn ono onr ont onu oo- oob ood oon ooo oor oot or- orb ord orn oro orr ort oru ot- otb otd otn oto otr ott otu ou- oud oun ouo our out rbb rbd rbn rbo rbr rbt rbu rdb rdd rdn rdo rdr rdt rdu rnb rnd rnn rno rnr rnt rnu rob rod ron roo ror rot rou rrb rrd rrn rrr rrt rru rtb rtd rtn rto rtr rtt rtu rub rud run ruo rur rut ruu tbb tbd tbn tbo tbr tbt tbu tdb tdd tdn tdo tdr tdt tdu tnb tnd tnn tno tnr tnt to- tob tod ton too tor tot tou trb trd trn tro trr trt tru ttb ttd ttn tto ttr ttt ttu tub tud tun tuo tur tut tuu ubb ubn ubo ubr ubt ubu udb udd udn udo udr udt udu un- unb und unn uno unr unt unu uob uod uon uoo uor uot ur- urb urd urn uro urr urt uru utb utd utn uto utr utt utu uun uur uut uuu

bbbb bbdd bbdo bd-r bnor bnrr bobb bobo bobu bodb bodo bodu bond bonn bono bont bonu boob bood boon boor boot bor- bord born boro borr bort boru botb botd botn boto bott boud boun bour bout brdo brdt brno brob brod bron broo bror brot brou brrr brud brun brut btdt btob btor btrt bttb 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 drno drob drod dron drot drou drub drut druu dtnb dtor dtot dub- dubb dubu dudd dudo dudu dunn duno dunt duo- duon durn duro durt duru duur duut nbbo nddb nddo ndnt ndor ndut nndb nnnn nnot nntn nobo nobu nodo nodu non- nonn nono nont nonu noo- noob noon nooo noor noot nor- norb nord norn noro norr nort not- noto nott noun nour nout nron nrrd ntnd ntnu ntru ntto nttr nudd nudo nunn nuno nunt nuon nurd nurn nurr nurt nuru nutt nutu 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 orbb orbo orbu ordn ordo ordu orno oro- oron oror orot orro orto orub otbd oto- oton otoo otor otro otto ottu otur oun- ound our- ourn ouro ourt out- outb outo ouu- rbbb rbbr rnbr rnnt rnod rnot rntd rnut rob- robb robo robt robu rodd rodo rond rono ront roob rood roon roor root roro rort roru rotn roto rotr rott roub roud roun rout 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 trno trod tron troo trot trou 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 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 uuno uuuu

bdoor bdort bo-bo bobr bodd- bodor bondo bonon bonou bonud bonut boond boont boord boorn boort booru borbo bordo born- borno bornt bornu boro- borod boron boroo borot borou borro borun borut boton botou botro bottu botun boudu bound bourd bourn bouto brobo brodd brodo brond bronn bront brood broon broto broud broun brout brrrr brud- brunn bruno brunt bruun btr-d btr-t btron bubon buddu budur bundt bundu bunud bunun bunut buono buord burn- burnt buron buroo burro burru burtt burud burun burut butdo butno buto- buton butor butot butou butuo butut d-dot d-rod ddddd do-do dobro dodon dodoo dodro dondo donon donor donot donut doodo doorn doout dordt dorno doron dorot dorud dotoo dotto doubt dount douro drbob drobo drood droon drott droun drout dtour dturn dubbo dubno dubon duddo dudon dudou dundo dunno dunod dunun duont durno duron durtu ndour nduru nnooo no-do no-no nobob nobuo nobut nodto non-u nondo nonno nonot noonu noord noort norbu nordo noron norro nortt norun notdo notno noto- noton notto nourt ntntd ntoro nu-nu nudur nunon nunun nuodb nuoro nurun nuton o-bon o-r-b obodo oboro obout obudu oddur odont odour odudu oduro onond onont onoon onorn onoto onour onout onto- ontoo ontur ooooo orbot ordon ordro ornon ornot orobo orodo orono orout orton ortoo oruro orutu otono ototo otour ottur oubut oudon ouoro ourno outdo outon outro outto ro-ro robbo robo- robon robor robot robrt robun robur rodbo rodon rodor rondo