bbbs bblb bbls bffl bffs bfsi bfsr bfts bftt bibb bibi bibl bibo bibs biff bifi biis bili bill bilo bils bilt bilu bimo bims bio- bioi biol bios biot biou birb biri birl biro birr birs birt biru bis- bisl biso biss bist bisu bito bits bitt bitu blbt blim blio blir blis blit blls blob blom bloo blot blou blss blst blts blub bluf blum blur blus blut bmir bmmi bmts bmus bobb bobi bobo bobs bobu boff bofs bofu boi- boii boil boim bois boit boiu boli boll bolm bolo bols bolt bolu bomb bomi boms bomt bomu boob boof bool boom boor boos boot bor- borf bori borm boro borr bors bort boru bosi bosm boso boss bost bosu botb boti boto bots bott bouf boul boum bour bous bout brfm brfu bril brim brio bris brit brls brob brol brom broo bror bros brot brou brrm brrr brrs brsb brsr brst brum brus brut bsff bsfs bsim bsms bsmt bsos bsrm bssm bsts btob btor btrt btss bttb btus bubb bubi bubo bubs bubu buff bufo bufr buif buir buis buit buiu bulb buli bull buls bult bulu bum- bumb bumf bums buol bur- burb buri burl burm buro burr burs burt buru busi buss bust busu but- buti buto buts butt buus fbis fbom fbrs fbus ffff ffii ffrr ffss fftf fibs fiff fifi fifm fifo fift fiii fiil fili fill film filo fils fimo fimr fior fios firm firs fisi fism fiss fist fisu fiti fits fitt flii flim flis flit flmb flob flom floo flor flos flot flou flts flub fluf flum fluo flur flus fmri fmsr fmss fobs fobt fofo foil fois foli foll folo folr fols folt fomo fomt foof fool foom foos foot for- forb fori forl form foro forr fors fort fosb fosi foso foss fost foti fotm foto fots fott foul four fous fout frib fril frim frio fris frit frob frol from fros frot frou frsb frsm frso frst frub frum fsfi fsfo fsim fssf ft-l ftii ftlb ftos ftrs ftsr ftub fubb fubs fubu fuff fufu fuil fuir fuit fuli full fuls fulu fumi fumo fums fuor fur- furi furl furm furo furr furs furt fusi fuso fuss fust fusu futi futo futs futu ibbm ibfi ibim ibis ibml ibms ibos ibot ibri ibro ibsf ibss ibtb ibtl ibts ibus ifbb ifil ifim ifis ifit ifor ifrb ifrf ifri ifsb ifso ifto iiii iiio iiis iiit iioi iioo iios iirs iisi iism iisr iist iisu iitm iitr iitt iium ilbm ilio ilir ilis ilit ill- illi illo ills illt ilmo ilmr iloo ilos ilot ilrm ilts ilum ilus ilut imbi imfi imir imit imli immi immo imms immt imof imou imri imro imrr imsf imsi imso imsr imss imst imsu imto imts imus iobi ioii ioio ioit iolo iomo ioof iooi iooo ioos iori iors ioso iosu iotf ioto ious irbm irfm irfu iri- iril irio iris irlb irmo irms irob irri irrs irsf irtf irti irts irul irus isbl isbt isil isim isis isit isls ismi ismo isms iso- isof isol isor isos isri issf issi isso issr isss issu isti isto istr ists isum isus itbs itif itil itim itis itll itmo itms itof itoi itol itoo itor itos itou itrf itri itrs itsf itsi itso itsu ittf itto itum itur iuiu iums iuss iust lblr lbms lbos lbrs lbrt lfmr lfts libo libr libs libu liff lifl lifo lift liii liir liis lilb lili lill lilo lils lilt lilu limb limi liml limm limo lims limu lio- liom lior lios liri lirl liro lirr lirs lirt liru lisi liso liss list lisu litb liti litl lito litr lits litt litu liuf lius liut llbs llll llms lloo lmbo lmfm lmii lmmr lmms lmrs lmsi lmsr lob- lobb lobi lobo lobs loff lofi loft loif loir lois loit loiu loli loll lolo lols lomb lomi lomm lomo loms lomu loob loof lool loom loor loos loot lori loro lors losi loso loss lost loti lotl loto lotr lots lott loui loul loum lour lous lout louu lrif lrmt lroi lrrr lrsm lrst lrts ls-r lsbu lsof lsso lssr lsts ltbf ltbl ltib ltrs ltsi ltsr lttr lubs luff luft lufu luif luis luit luli lull lulu lumb lumi lumo lums luri lurs lurt lusi luso luss lust luti luts mbbs mbim mbio mbis mbms mbou mbrs mbsf mbsl mbus mfbm mfor mfou mfri mfrs mfsb mftf mibs miff mifi miii miio miis miit milf mili mill milo milr mils milt milu mim- mimi mimo mims mio- miol mios miri mirl miro mirr mirs mirt miru mis- misi misl miso misr miss mist misu mit- mitb miti mitm mito mits mitt mitu miui mlii mlis mlit mlrs mlss mltb mltr mmff mmii mmis mmli mmmm mmms mmor mmrf mmst mmsu mmts mmus mobb mobi mobo mobs moff mofo mofu moif moii moil moio moir mois moit moli moll molo molr mols molt momi momo moms momu moob mool moor moos moot morb morf mori morl moro mors mort moru mosi moso moss most mosu motb moti motl motm moto mots mott motu mouf moul mour mous mout mrbb mrbm mrbs mris mrls mrml mrsi mrsl mrtm mrts mrtt msff msfs msft msil msmb msml msmm msms msmu msol msor msrb msrt mssf mssi mssm mssr msst mstr msts msus mtbo mtbs mtff mtlb mtom mtor mtrl mtrr mtsl mtss mtst mttr mtts mubi mubo mubs muff mufi mufu muil muir muis muit muli mull mulm mulo mult mulu mumm mumo mums mumu muos muri murl muro murr murs murt muru musi musl muso muss must musu muti muto muts mutt mutu muut obbo obis obit obls oblu oboi obol obor obos obot obri obro obsr obss obst obts obus off- offo offr offs offu ofit ofml ofor ofst ofus oiii oils oimb oios oirt oism oist oisu oiti oium olbo olfs olib olim olio olis olit olli ollo olmi olmo olms olof olom olor