bbbb bbbs bbhs bboy bbyo bhhs bhit bhoi bhot bhoy bibb bibi bibo bibs bihi bihs biis bio- bioi bios biot bis- bish biso biss bist bisy bith bito bits bitt biys bobb bobi bobo bobs boby boho bohs boht bohy boi- boii bois boit boob booh boos boot bosh bosi boso boss bost botb both boti boto bots bott boty boyi boyo boys bshs bsos bsts bths btob btss bttb byit byob byoi byos bysb bysi byso byss byst bysy byth byts h-ii hbbs hbhs hbio hbit hbos hbss hhhh hhhs hibi hibt hihi hiho hiht hiis hiit hiob hisb hish hiss hist hiti hito hits hitt hiyo hobo hobs hoby hoho hois hoit hoos hoot hosh hoss host hotb hoth hoti hoto hots hott hoyi hoys hoyt hshs hsob hsts hths htoh hybo hyo- i-by ibis ibos ibot ibss ibtb ibts ibyi ihis ihit ihob ihss iiht iiii iiio iiis iiit iioi iioo iios iisi iist iitt iobi ioby ioii ioio ioit iooi iooo ioos ioso ioto isbt ishi ishs isis isit iso- isos issh issi isso isss issy isth isti isto ists isty isys itbs itby iths itis itoh itoi itoo itos itsi itso itsy itto itty iyos iysh obbo obby obhs obis obit oboi obos obot oboy obss obst obts ohhi ohho ohhs ohio ohis ohob ohoh ohos ohso ohss ohto ohyo oiii oios oist oiti oobi ooby ooho oohs oooh oooo ooos oosi oost ootb oots ooty osby oshi osho oshs osii osis osoi osoo osos ossb ossi osso ossy osti osts osyt otbs otho oths otis otit oto- otoh otoo otos otoy otso otti otto otts oyss oyst s-ib s-ii s-os sbbs sbhs sbot sbsi sbst shbs shbt shhh shhs shib shih shii shio shis shit shoo shos shot shts shyt sibi sibo sibs siby sihi sihs siht siit sios siot sish sisi siss sist sisy sit- sith siti sito sits sitt sity siyi sobo sobs sobt sohh soho sohs sois soit soos soot sooy sosh sosi soso soss sost soth soto sots soyo soys soyt ssby sshs ssis ssit ssot sssb sssh sssi ssss sstb ssth ssts stbs sths stib stih stio stis stit stob stoo stos stot stoy stsi stss stys sybo syht syis syso syss syst syth sytt tbbs tbhs tbit tbst thbs thi- thio this thoo thos thot thss thtb thts thyh thys tibi tibs tiht tiit tios 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 toos toot tosb tosh tosi toso toss tost tosy toth toti toto tots tott toty toyb toyo toys toyt tshb tshi tshs tsis tsob tsoi tsos tsoy tssi tsst tsts tsys ttbb ttoy ttss tttt ttys tybi tybo tyht tyss tyst tyti tyto tytt tyty ybbs yhis yhit yiss yist yiti yobi yobo yobs yoho yoit yoot yosh yosi yoso yost yott yoyo ysby ysii yssh ysyb ytht yyyy