bbbb bbbs bggs bgst bibb bibi bibo bibs bigb bigg bigo bigs bigt biis bio- biog bioi bios biot bipp bips bis- biso bisp biss bist bito bits bitt bobb bobi bobo bobs bogg bogi bogo bogs bogt boi- boii bois boit boob boog boop boos boot bopp bops bosi boso boss bost botb boti boto bots bott bpot bpti bsgs bsos bspp bsts btbp btob btps btss bttb gbbo gbbs ggbt gggg ggpo ggss gibb gibs gigg gigi gigo gigs giis giog gioi giop gipi gipp gips giss gist gito gits gobi gobo gobs gogi gogo gogs goip gois goit goog gooi goop goos goot gopi gopo gops gosi goso goss gost goti goto gots gott gpgp gpip gpos gpot gpsg gpsi gpso gpss gsis gsos gspt gtip gtop gtos i-go ibis ibos ibot ibss ibtb ibts igbo iggs igis igoo igot igso igsp iiii iiio iiis iiit iioi iioo iiop iios iisi iisp iist iitt iobi iogt ioii ioio ioit iooi iooo ioos iops ioso ioto ipop ipos ippo ipsi ipso ipsp ipss ipto ipts isbt isis isit iso- isop isos isps issi isso issp isss isti isto istp ists itbs itgo itgs itis itoi itoo itos itsi itso itsp itto obbo obis obit oboi obos obot obss obst obts ogb oggi ogog ogoi ogsi oigo oiii oios oist oiti oobi oooo ooos oops oosi oost ootb ootp oots opii opio opis opit opo- opos oppi oppo opps opsi opti opto opts osbp osgi osii osip osis osoi osoo osos ossb ossi osso osti osts otbs otis otit oto- otog otoo otos otpp otsg otso otti otto otts pbsp pgib pgss pibb pibi pigb pigg pigo pigp pigs pigt piip piob piot pipi pipo pipp pips pisg pisi piso piss pist piti pito pits pitt pobo pobs pogg pogo pogs poio pois poop poos poot pop- popi popo popp pops popt posb posi poso poss post poti poto pots pott ppgi ppib ppig ppos pppo pppp ppps ppss ppts pptt psbt psgi psip psis psoi psos pspi pspp psps psso psst psts ptgs ptop s-ib s-ii s-os sbbs sbig sbot sbsi sbsp sbst sggg sggs sgio sgps sgss sgts sibi sibo sibs sigg sigi sigo sigs siit siop sios siot sipi sipo sipp sips sipt sisi siss sist sit- siti sito sits sitt sobo sobp sobs sobt sogi sogo sogs sois soit soog soop soos soot sopi sopo sopp sops sosi soso soss sost soto sotp sots spgb spgt spib spig spio spip spis spit spoo spop spos spot spps spso spsp spss spst sptb spto spts ssgs ssgt ssis ssit ssop ssot sspo ssps sspt sssb sssi ssss sstb sstp ssts stbs stib stig stio stip stis stit stob stog stoo stop stos stot stpp stps stsi stss tbbs tbgs tbit tbsp tbst tbtp tgts tibi tibs tigi tigs tiit tiop tios tip- tipi tipo tipp tips tipt tisb tisi tiso tiss tist titi tito titp tits titt tobi tobo tobs tobt togo togs togt tois toit toos toot top- topi topo topp tops topt tosb tosi toso toss tost toti toto tots tott tpbg tppp tptp tsgt tsig tsis tsob tsoi tsop tsos tspo tsps tspt tssg tssi tsst tsts ttbb ttop ttss tttt