bbbb bbbs bbdd bbdo bboy bbyo bd-r bdii bdos bdry bdsd bibb bibi bibo bibs bidi bido bidr bids biis bio- bioi bios biot birb bird biri biro birr birs birt biry bis- bisd biso biss bist bisy bitd bito bits bitt biys bobb bobi bobo bobs boby bodb bodi bodo bods body boi- boid boii bois boit boob bood boor boos boot bor- bord bori boro borr bors bort bory bosi boso boss bost botb botd boti boto bots bott boty boyd boyi boyo boys brdo brds brdt brdy brid brio bris brit brob brod broo bror bros brot brrr brrs brsb brsr brst bry- bryd bryo bsbd bsod bsos bsrd bssd bsts btdt btob btor btrt btry btss bttb byit byob byod byoi byos byrd byrt bysb bysi byso byss byst bysy byts byyd d-bo dbit dbos dboy dbrs dbss dbtt dddd ddot ddry ddss ddts dibb dibo dibs diby didi dido dids didy diii diis dior dios diot dird dirr dirs dirt dis- disd disi diso diss dist disy diti dito dits ditt diyi dobb dobi dobs doby dod- dodd dodi dodo dods dody doid dois doit doob dood door doos doot dord dori doro dorr dors dort dory dosi doso doss dost dosy dotd doti doto dots dott doty doyo drib drit drob drod drot droy drrs dry- drys dsdr dsos dsri dsrr dssi dsst dsto dsts dtor dtot dtss dybt dydd dyio dyit dyo- dyoo dyor dyot dyr- dyrb dyri dyro dyrt dys- dysi dysr dyss dyst dyt- dyty dyyr i-by ibdo ibid ibis ibos ibot ibrd ibri ibro ibss ibtb ibts ibyi iddo idid idio idir idis idos idro idso idss idts iiii iiio iiis iiit iioi iioo iios iirs iisd iisi iisr iist iitr iitt iobi ioby iod- iodd iodo ioii ioio ioit iooi iooo ioos iori iors ioso ioto irby irdo irds iri- irid irio iris iriy irob irod irri irrs irti irts isbd isbt isdb isds isis isit iso- isor isos isri issi isso issr isss issy istd isti isto istr ists isty isys itbs itby itdo itis itoi itoo itor itos itri itrs itry itsi itso itsy itto itty iyos obbo obby obdt obid obis obit oboi obor obos obot oboy obri obro obsd obsr obss obst obtd obts odbo oddd oddi odds oddy odio odir odis odoo odor odos odot odry odso odts odyr oido oids oiii oios oirt oiry oisd oist oiti oobi ooby oodi ooid oooo ooos oord oort oory oosi oost ootb oots ooty orbb orbi orbo orbs orby ordo ords ori- orid orio oris orit oro- oror oros orot oroy orri orro orrs orry orsi orso orsy orto orts orys osby osdi osii osis osoi osoo osor osos osrd osro ossb ossd ossi osso ossy osti ostr osts osyt otbd otbs otis otit oto- otoo otor otos otoy otro otrs otry otso otti otto otts otyr oyri oyss oyst rbbb rbbr rbbs rbds rbis rbsd rbss rbst rdio rdos rdso rib- ribo ribs riby ridd ridi rido rids riis rios riot riri rirs risd risi riso riss rist riti rito rits ritt riyo rob- robb robi robo robs robt roby rodd rodi rodo rods rody roid roio roir rois roit roob rood rooi roor roos root rori roro rort rory rosi roso ross rost rosy roti roto rotr rots rott roty royd roys royt rrrr rsbi rsdd rsds rsid rsis rsos rsts rtdt rtss rtts rydy ryis ryob ryot rysy rytt ryyt s-ib s-ii s-os sbbs sbds sbor sbot sbsd sbsi sbst sdds sdib sdio sdot sdrs sdry sdss sibi sibo sibs siby sidd sidi sido sidr sids sidy siit siod sior sios siot siri siro sirr sirs sirt sisd sisi siss sist sisy sit- sitd siti sito sits sitt sity siyi sobo sobr sobs sobt sodd sodo sods sody soir sois soit sood soor soos soot sooy sorb sord sori soro sorr sors sort sory sosi soso soss sost soto sots soyo soys soyt srby srib sris sros srsd srtr ssbr ssby ssdd ssid ssis ssit ssot ssri ssrs sssb sssi ssss sstb sstd ssts stbd stbs stds stib stid stio stir stis stit stob stod stoo stor stos stot stoy strd stri stro strs stry stsi stss sttd sttr styd styr stys sybo sydi syds syis syro syrs syrt syry syso syss syst sytt tbbs tbit tbrb tbst tddb tdis tdor tdri tdss tibi tibs tidd tids tidy tiit tios tirb tird tiri tiro tirr tirs tiry tisb tisi tiso tiss tist titi tito tits titt tiyi tiyo to-y tobi tobo tobs tobt toby todd todi todo tods todt tody toid tois toit tood toor toos toot tord tori toro torr tors tort tory tosb tosi toso toss tost tosy totd toti toto totr tots tott toty toyb toyo toys toyt tri- trib trio tris trit trod troi troo tros trot troy trsd trsi trst trtr try- tryb tryo trys tsbd tsdb tsid tsis tsob tsoi tsos tsoy tssi tssr tsst tsts tsys ttbb ttoy ttss tttt ttyd ttys tybi tybo tydd tydi tydy tyir tyr- tyro tyrr tyss tyst tytd tyti tyto tytt tyty ybbs ybor ybry ydyt yidi yids yirb yird yirr yiss yist yiti yobi yobo yobs yodo yods yoit yood yoot yord yori yoro yort yory yosi yoso yost yott yoyo ysby ysii ysyb yyyy