bbbb bbbs bbdd bbin bblb bbls bd-r bdii bdin bdls bdsd bibb bibi bibl bibs bidi bidr bids bidu biin biis bild bili bill bils bilt bilu bin- bind bini binn bins bint binu birb bird biri birl birn birr birs birt biru bis- bisd bisl biss bist bisu bitd bits bitt bitu blbt bldr blin blir blis blit blls blni blss blst blts blub blud blur blus blut bnib bnin bnrr bnss brds brdt brid bril brin bris brit brls brns brrr brrs brsb brsr brst brud brun brus brut bsbd bsdl bsin bsnd bsns bsrd bssd bsts btdt btrt btss bttb btus bubb bubi bubs bubu budb budd budi budl buds budu buid buin buir buis buit buiu bulb buld buli bull buls bult bulu bunb bund buni bunn buns bunt bunu bur- burb burd buri burl burn burr burs burt buru busi buss bust busu but- buti buts butt buus dbit dbls dbnl dbrn dbrs dbss dbtt dbus dddd ddss ddts ddub dibb dibs didi dids didu diii diis dili dill dils din- dini dinn dins dint dinu dird dirl dirr dirs dirt dis- disd disi diss dist diti dits ditt dius dlbd dlib dlii dlil dlis dlit dlrs dlst dnis dntt dnus dnut drib dril drin drit drrs drub drui drus drut druu dsdr dsls dsri dsrr dssi dssn dsst dstn dsts dtnb dtrl dtss dub- dubb dubs dubu dudd duds dudu duid duil duin duir duis duit duli dull dult dulu dunn duns dunt duri durn durt duru dusi dust duts duul duur duut ibid ibis ibns ibrd ibri ibsn ibss ibtb ibtl ibts ibus idid idil idin idir idis idli idls idss idts idub idun idus iiii iiis iiit iirs iisd iisi iisr iist iisu iitr iitt ilin ilir ilis ilit ill- illd illi ills illt ilni ilts ilud ilus ilut inbd ind- indi inds indu inid inis init inni innr inns innu inri inrs inss inst insu intd inti intl intn intr ints intu inui inul inun inus irds iri- irid iril irin iris irlb irri irrs irti irts irul irun irus isbd isbl isbn isbt isdb isdn isds isil isin isis isit isls isnt isri issi issr isss issu istd isti istr ists isus itbs itil itin itis itll itri itrs itsi itsu itur iuds iuiu iusd iuss iust lbds lblr lbrs lbrt ldls ldrs libr libs libu lidb lidl lids liii liin liir liis lilb lili lill lils lilt lilu lind linn lins lint lird liri lirl lirn lirr lirs lirt liru lisd lisi liss list lisu litb litd liti litl litr lits litt litu liun lius liut llbs lldb llds llll llud lndn lnts lrdd lrds lrrr lrst lrts ls-r lsbu lsds lsid lssr lsts ltbl ltds ltib ltns ltnt ltrs ltsi ltsr lttr lubs ludd ludi luin luis luit luli lull lulu lund luni lunn luns lunt lurd luri lurs lurt lusi luss lust luti luts n-ii nbti nddb ndls ndnt ndri ndsi ndsl ndss ndut nibi nibs nidd nidi nids niir niit niiu nild nili nill nils nilt nilu nind nini ninl nins nirs nirt niru nisd nisi nisl niss nist nisu nitb niti nitr nits niur nlls nlrb nndb nnit nnls nnnn nnsl nnss nntn nrds nrlb nrrd nrrl nrtl nrts nsdl nsds nsdt nsin nsis nslr nsls nsnr nsrd nsrl nssb nssr nsss nstd nstl nsts nstu nsub ntds ntis ntnd ntnu ntrl ntru ntsb ntss ntsu nttr ntui nubi nubl nubs nudd nudi nuin nuit nuli null nunn nuns nunt nurd nuri nurl nurn nurr nurs nurt nuru nusi nusl nuss nust nusu nuts nutt nutu rbbb rbbr rbbs rbds rbis rbsd rbsl rbss rbst rib- ribs ribu ridd ridi rids riin riis rill rilu rind rinn riri rirs risd risi riss rist risu riti ritl rits ritt ritu rius rlds rldt rlin rlls rnbr rnds rnin rnld rnli rnnt rntd rnut rrrr rrun rsbi rsdd rsdl rsds rsid rsis rsnn rsnr rssl rsts rstu rtdt rtls rtlt rtnd rtns rtss rtts rubb rubi rubs rubu rudd rudi rudl ruds ruid ruin ruis ruit rull rund runi runn runs runt rurd ruri rurs ruru rusi russ rust rusu ruti rutl ruts rutt rutu ruud ruun s-ib s-ii sbbs sbds sbsd sbsi sbst sbtn sbus sdds sdib sdls sdlt sdrs sdsl sdss sdsu sibi sibs sibu sidd sidi sidr sids siit sil- sild sili sill sils silt silu sind sini sinn sins sint sinu siri sirr sirs sirt siru sisd sisi siss sist sisu sit- sitd siti sitn sits sitt situ siui sius siut sl-i slds slib slid slir slit slln slrn slrs slst slsu slts slub slud slur slut snib snid snir snit snns snrs snsd sntr snub snur snus srib sris srni srnn srsd srtr srub ssbn ssbr ssdd ssid ssin ssis ssit sslt ssns ssri ssrl ssrs sssb sssi ssss sstb sstd sstl ssts stbd stbs stds stib stid stil stir stis stit stld stln stlt stnd stnn stnr stns strd stri strn strs stru stsi stss sttd sttr stub stud stul stun stur stus stut sub- subb subd subi subl subs sudd sudi suds suid suin suir suis suit sul- suld suli sull sult sulu sun- sunb sund suni sunn suns sunt sunu sur- surd suri surn surr surs surt suru sus- susd susi suss sust susu suti sutu suus tbbs tbil tbit tbrb tbst tddb tdil tdis tdls tdri tdss tibi tibs tibu tidd tids tiit tiiu tild till tiln tilr tils tilt tind tini tinn tins tint tinu tirb tird tiri tirl tirr tirs tiru tisb tisi tiss tist titi tits titt titu tldr tlli tlrs tndd tnts tnut tri- trib tril trin tris trit trsd trsi trst trtr trub trud trun trus trut truu tsbd tsdb tsid tsin tsis tssi tssr tsst tsts tsui tsun ttbb ttss tttt ttul tubb tubr tubs tubu tudi tudu tuil tuin tuis tuit tuiu tuli tull tulu tunb tund tuni tunn tuns tunu turb turd turi turn turr turs turt turu tusd tusi