b-u bbb bbf bbm bbn bbo bbr bbu bfb bff bfm bfn bfo bfr bfu bmb bmf bmm bmn bmo bmr bmu bnb bnf bnn bno bnr bnu bob bof bom bon boo bor bou brb brf brm brn bro brr bru bub buf bum bun buo bur buu fbb fbf fbm fbn fbo fbr fbu fff ffm ffn ffo ffr ffu fmb fmf fmm fmn fmo fmr fmu fnb fnf fnm fnn fnr fnu fob fof fom fon foo for fou frb frf frm frn fro frr fru fub fuf fum fun fuo fur fuu m-f m-o m-r mbb mbf mbm mbo mbr mbu mfb mff mfm mfn mfo mfr mfu mmb mmf mmm mmn mmo mmr mmu mnb mnf mnm mnn mno mnr mnu mob mof mom mon moo mor mou mrb mrf mrm mrn mro mrr mru mub muf mum mun mur muu nbb nbf nbm nbn nbo nbr nbu nfb nff nfn nfo nfr nfu nmb nmm nmn nmo nmr nmu nnb nnf nnm nnn nno nnu no- nob nof nom non noo nor nou nrb nrf nrm nrn nro nrr nru nub num nun nuo nur nuu ob- obb obf obm obn obo obr obu of- ofb off ofm ofn ofo ofr ofu om- omb omf omm omn omo omr omu on- onb onf onn ono onr onu oo- oob oof oom oon ooo oor or- orb orf orm orn oro orr oru ou- ouf oum oun ouo our rbb rbf rbm rbn rbo rbr rbu rfb rff rfm rfn rfo rfr rfu rmb rmf rmm rmn rmo rmr rnb rnm rnn rno rnr rnu rob rof rom ron roo ror rou rrb rrf rrm rrn rrr rru rub ruf rum run ruo rur ruu ubb ubf ubn ubo ubr ubu uff ufm ufn ufo ufr ufu um- umb umf umm umn umo umr umu un- unb unf unm unn uno unr unu uob uom uon uoo uor ur- urb urf urm urn uro urr uru uum uun uur uuu

bbbb bbfn bnor bnrr bobb bobo bobu boff bofu bomb bomu bonn bono bonu boob boof boom boon boor bor- borf borm born boro borr boru bouf boum boun bour brfm brfu brno brob brom bron broo bror brou brrm brrr brum brun bubb bubo bubu buff bufo bufr bum- bumb bumf bunb bunn buno bunu buon bur- burb burm burn buro burr buru fbom ffff ffrr ffun fmno fnuf fofo fomo fono foof foom foon for- forb form forn foro forr foun four frmn frob from fron frou frub frum frun fubb fubu fuff fufu fumo funf fuor fur- furm furn furo furr mbou mfbm mfor mfou mmff mmmm mmor mmrf mmun mnbb mobb mobo moff mofo mofu momo momu mon- monn mono monu moob moon moor morb morf morn moro moru mouf moun mour mrbb mrbm mron mubo muff mufu mumm mumo mumu munn muno munu muon murn muro murr muru nbbo nbuf nfff nfon nmff nmon nnnn nobm nobo nobu nom- nomo nomu non- nonn nono nonu noo- noob noon nooo noor nor- norb norf norm norn noro norr noun nour nron nuff numb numm numu nunn nuno nuon nurn nurr nuru obbo obon obor obro off- offo offr offu ofno ofor ombo ombu omn- omo- omon omoo omor omro omuo onno onon onor onur ooff oooo orbb orbo orbu orff orfu ormn ormo orno oro- orof orom oron oror orro orub orum ouff oun- our- ourn ouro ouu- rbbb rbbr rmon rnbr rob- robb robo robu roff rofo romb romm romo rono roob roof room roon roor roro roru roub rouf roum roun rrrr rrum rrun rubb rubu ruff rufo rumb rumm rumo runf runn runo ruro ruru ruun ubbo ubon umb- umbo umff ummo umno umor unmr unno unon unrf unro unum uofm uofo uomo uor- urff uro- urom uroo urum urun urur uuno uuuu

-form bo-bo bobr boffo bombo bonon bonou bonum boomb boomf boorn booru borbo bormo born- borno bornu boro- borom boron boroo borou borro borum borun bourn brmmm brobo brom- bromo bronn broom broon broun brrrr bruff brumm brunn bruno bruun bubon buffo bumbo bumbu bunun buono burn- buron buroo burro burru burun fbomb fofum fomon fomor form- forno forro forum forur fourb fourm fouro fromm froom frorn fu-fu fuorn furbo furo- furor mbnfn mboro mburu mmfbm mmmmm mobor mobro moffo mombo mombu monno mono- monon monor monro moorn mooro morbo morfu mormo moron moror morou morro morum morun mourn mrmom mroof mrorr mufon mumbo mummu mumun munro murom muron muror murro murru murum nbomb nnooo no-no nobob nobuo nofor nofou nofun nommo nomo- nomom non-u nonno noonu norbu norm- noron norro norum norun nroff nu-nu nunon nunun nuoro nurmo nurun o-bon o-r-b oboro obrom offof offon offun ofono oforn ofour ofrum omoon omoro omron onmun onoff onoon onorn onour ooooo orbom orfor ormur ornon orobo oromo orono orrum oruro ouoro ourno rmnmn ro-ro robbo robo- robon robor robun robur rofor romfo romon ronno roomu rorbu roumm rubof rubon rubor ruffo rufo- rumbo rummo rummu rumor runo- runof runon ruomu ubobo ufofu uforb umbro umour unfun unfur unnun unnur unoor unorn unrun unurn uroob urour urubu uuuuu

b-room bbbbbb bobrun bombom bombon bombur bonbon bonnor bonobo bonomo booboo boom-o borbon borbor bornof bornon bornum boromo bororo boubou bounou bourou bromo- bronno brubru bruron buborn bububu buffon buffum bumboo burbur burnou burnum f-bomb foboff fonmon foofoo foofur foorum forbon forfun formo- foufou fourof fourou frbroo fumoon funoon funorb funrun furfur furour furrfu furuno mbombo mbomou moffom moffou mommur moomoo mormon mormor mormur moroun mouron mourou mrnoon muffro munnur murmur muumuu n-bomb noboru noforn nombur nomnom nomoon non-no nonono nonoon noonoo noonor normo- normob noroff noromo noroof noroom nounou nrrfrm numfor nunmor of-run ombro- on-off oooooo oromoo orrour ouroun robomb romour ronnon ronron roomon rounou rubbon ruboff rubro- rubrum rumbur rumour run-on runfor runoff u-form ubombo unborn unburn unform unmoor unroof urform

bbbbbbb bommuru bon-bon bonorum boo-boo bornuur bouffon boufoon bourbon bourrou buffoon bunomon burnoff burnouf foo-foo forburn