bbbb bbbs bggs bgst bibb bibi bibs bigb bigg bigs bigt biis bipp bips bis- bisp biss bist bits bitt bpti bsgs bspp bsts btbp btps btss bttb gbbs ggbt gggg ggss gibb gibs gigg gigi gigs giis gipi gipp gips giss gist gits gpgp gpip gpsg gpsi gpss gsis gspt gtip ibis ibss ibtb ibts iggs igis igsp iiii iiis iiit iisi iisp iist iitt ipsi ipsp ipss ipts isbt isis isit isps issi issp isss isti istp ists itbs itgs itis itsi itsp pbsp pgib pgss pibb pibi pigb pigg pigp pigs pigt piip pipi pipp pips pisg pisi piss pist piti pits pitt ppgi ppib ppig pppp ppps ppss ppts pptt psbt psgi psip psis pspi pspp psps psst psts ptgs s-ib s-ii sbbs sbig sbsi sbsp sbst sggg sggs sgps sgss sgts sibi sibs sigg sigi sigs siit sipi sipp sips sipt sisi siss sist sit- siti sits sitt spgb spgt spib spig spip spis spit spps spsp spss spst sptb spts ssgs ssgt ssis ssit ssps sspt sssb sssi ssss sstb sstp ssts stbs stib stig stip stis stit stpp stps stsi stss tbbs tbgs tbit tbsp tbst tbtp tgts tibi tibs tigi tigs tiit tip- tipi tipp tips tipt tisb tisi tiss tist titi titp tits titt tpbg tppp tptp tsgt tsig tsis tsps tspt tssg tssi tsst tsts ttbb ttss tttt