bbbb bbbs bbhs bboy bbyo bhhs bhir bhit bhoi bhor bhot bhoy bhrt bibb bibi bibo bibs bihi bihs biis bio- bioi bios biot birb biri biro birr birs birt biry bis- bish biso biss bist bisy bith bito bits bitt biys bobb bobi bobo bobs boby boho bohr bohs boht bohy boi- boii bois boit boob booh boor boos boot bor- borh bori boro borr bors bort bory bosh bosi boso boss bost botb both boti boto bots bott boty boyi boyo boys brhs brih brio bris brit brob broh broo bror bros brot brrr brrs brsb brsr brst bry- bryo bshs bsos bsts bths btob btor btrt btry btss bttb byit byob byoi byos byrt bysb bysi byso byss byst bysy byth byts h-ii hbbs hbhs hbio hbit hbos hbrs hbss hhhh hhhs hibi hibt hihi hiho hiht hiis hiit hiob hiri hiro hirs hirt hisb hish hiss hist hiti hito hits hitt hiyo hobo hobs hoby hoho hoir hois hoit hoor hoos hoot hori horo horr hors hort hory hosh hoss host hotb hoth hoti hoto hotr hots hott hoyi hoys hoyt hrhs hrib hrit hrob hros hrso hrtb hryb hshs hsob hsts hths htoh httr hybo hyo- hyrt i-by ibis ibos ibot ibri ibro ibss ibtb ibts ibyi ihis ihit ihob ihss iiht iiii iiio iiis iiit iioi iioo iios iirs iisi iisr iist iitr iitt iobi ioby ioii ioio ioit iooi iooo ioos iori iors ioso ioto irby irhs iri- irio iris iriy irob iroh irri irrs irti irts isbt ishi ishr ishs isis isit iso- isor isos isri issh issi isso issr isss issy isth isti isto istr ists isty isys itbs itby iths itis itoh itoi itoo itor itos itri itrs itry itsi itso itsy itto itty iyos iysh obbo obby obhs obis obit oboi obor obos obot oboy obrh obri obro obsr obss obst obts ohhi ohho ohhs ohio ohis ohob ohoh ohos ohso ohss ohto ohyo oiii oios oirt oiry oist oiti oobi ooby ooho oohs oooh oooo ooos oort oory oosi oost ootb oots ooty orbb orbi orbo orbs orby orhs ori- orio oris orit oro- oror oros orot oroy orri orro orrs orry orsi orso orsy orth orto orts orys osby oshi osho oshs osii osis osoi osoo osor osos osro ossb ossi osso ossy osti ostr osts osyt otbs otho othr oths otis otit oto- otoh otoo otor otos otoy otro otrs otry otso otti otto otts otyr oyri oyss oyst rbbb rbbr rbbs rbhs rbis rboh rbss rbst rhhs rhib rhio rhob rhoh rhos rhys rib- ribo ribs riby riho rihs riht riis rios riot riri rirs rish risi riso riss rist rith riti rito rits ritt riyo rob- robb robi robo robs robt roby rohr rohs rohy roio roir rois roit roob rooi roor roos root rori roro rort rory rosh rosi roso ross rost rosy roth roti roto rotr rots rott roty roys royt rrhs rrrr rsbi rshs rsis rsos rsts rths rtss rtts ryhb ryis ryob ryoh ryot rysh rysy ryth rytt ryyt s-ib s-ii s-os sbbs sbhs sbor sbot sbsi sbst shbs shbt shhh shhs shib shih shii shio shir shis shit shoo shor shos shot shri shrs shts shyt sibi sibo sibs siby sihi sihr sihs siht siit sior sios siot siri siro sirr sirs sirt sish sisi siss sist sisy sit- sith siti sito sits sitt sity siyi sobo sobr sobs sobt sohh soho sohs soir sois soit soor soos soot sooy sorb sorh sori soro sorr sors sort sory sosh sosi soso soss sost soth soto sots soyo soys soyt srby srhs srib sris sros srtr ssbr ssby sshs ssis ssit ssot ssri ssrs sssb sssh sssi ssss sstb ssth ssts stbs sths stib stih stio stir stis stit stob stoo stor stos stot stoy stri stro strs stry stsi stss sttr styr stys sybo syht syis syro syrs syrt syry syso syss syst syth sytt tbbs tbhs tbit tbrb tbst thbs thi- thio thir this thoo thor thos thot thri thro thsr thss thtb thtr thts thyh thys tibi tibs tiht tiit tios tirb tiri tiro tirr tirs tiry tisb tish tisi tiso tiss tist tith titi tito tits titt tiyi tiyo to-y tobi tobo tobs tobt toby tohi toho tois toit tooh toor toos toot tori toro torr tors tort tory tosb tosh tosi toso toss tost tosy toth toti toto totr tots tott toty toyb toyo toys toyt trhs tri- trib trio tris trit troi troo tros trot troy trsi trst trtr try- tryb tryo trys tshb tshi tshs tsis tsob tsoi tsos tsoy tssi tssr tsst tsts tsys ttbb ttoy ttss tttt ttys tybi tybo tyht tyir tyr- tyro tyrr tyss tyst tyti tyto tytt tyty ybbs ybor ybry yhis yhit yirb yirr yiss yist yiti yobi yobo yobs yoho yoit yoot yori yoro yort yory yosh yosi yoso yost yott yoyo yrho ysby ysii yssh ysyb ytht yyyy