bbbb bbbs bbhs bhhs bhit bhoi bhot bibb bibi bibo bibs bihi bihs biis biji bijs bio- bioi bios biot bis- bish biso biss bist bith bito bits bitt bjhs bobb bobi bobo bobs boho bohs boht boi- boii bois boit boji bojo bojt boob booh boos boot bosh bosi boso boss bost botb both boti boto bots bott bshs bsos bsts bths btob btss bttb h-ii hbbs hbhs hbio hbit hbos hbss hhhh hhhs hibi hibt hihi hiho hiht hiis hiit hijo hiob hisb hish hiss hist hiti hito hits hitt hobo hobs hoho hois hoit hojo hoos hoot hosh hoss host hotb hoth hoti hoto hots hott hshs hsob hsts hths htoh ibis ibos ibot ibss ibtb ibts ihis ihit ihob ihss iiht iiii iiio iiis iiit iioi iioo iios iisi iisj iist iitt ijji iobi ioii ioio ioit iooi iooo ioos ioso ioto isbt ishi ishs isis isit iso- isos issh issi isso isss isth isti istj isto ists itbs iths itis itoh itoi itoo itos itsi itso itto jbhs jbob jhhs jibb jibi jibs jiji jish jiso jist jiti jito jits jobo jobs johi joho joio jois joit joji jojo joos joot josh joso joss jost joto jots jott jsss jtsb obbo obhs obis obit oboi obos obot obss obst obts ohhi ohho ohhs ohio ohis ohob ohoh ohos ohso ohss ohto oiii oios oist oiti ojos oobi ooho oohs ooij ooji oooh oooo ooos oosi oost ootb oots oshi osho oshs osii osis osoi osoo osos ossb ossi osso osti osts otbs otho oths otis otit oto- otoh otoo otos otso otti otto otts 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 sibi sibo sibs sihi sihs siht siit sijo sijt sios siot sish sisi siss sist sit- sith siti sito sits sitt sjhs sjis sobo sobs sobt sohh soho sohs sois soit soji soos soot sosh sosi soso soss sost soth soto sots sshs ssis ssit ssot sssb sssh sssi ssss sstb ssth ssts stbs sths stib stih stio stis stit stob stoo stos stot stsi stss tbbs tbhs tbit tbst thbs thi- thio this thoo thos thot thss thtb thts tibi tibs tiht tiit tiji tijo tijs tios tisb tish tisi tiso tiss tist tith titi tito tits titt tjhs tjsj tobi tobo tobs tobt tohi toho tois toit toji tojo tooh toos toot tosb tosh tosi toso toss tost toth toti toto tots tott tshb tshi tshs tsis tsob tsoi tsos tssi tsst tsts ttbb ttss tttt