bbbb bbbs bggs bgst bibb bibi bibs bigb bigg bigs bigt bigu biis bipp bips bipu bis- bisp biss bist bisu bits bitt bitu bpsu bpti bsgs bspp bsts bsup btbp btps btss bttb btus bubb bubi bubs bubu bugg bugi bugs buis buit buiu bups busi buss bust busu but- buti buts butt buus gbbs ggbt gggg ggss gibb gibs gigg gigi gigs giis gipi gipp gips giss gist gits gius gpgp gpip gpsg gpsi gpss gsis gspt gtip gubb gubi gubs gubu gugb gugg gugi gugu guib guis gups gusb guss gust guti guts gutt gutu guus ibis ibss ibtb ibts ibus iggs igis igsp igus iiii iiis iiit iisi iisp iist iisu iitt ipsi ipsp ipss ipts ipus iput isbt isis isit isps issi issp isss issu isti istp ists isup isus itbs itgs itis itsi itsp itsu itup iugs iuiu iupp iuss iust pbsp pgib pgpu pgss pgup pibb pibi pigb pigg pigp pigs pigt pigu piip pipi pipp pips pisg pisi piss pist pisu piti pits pitt pitu pius ppgi ppib ppig pppp ppps ppss ppts pptt psbt psgi psip psis pspi pspp psps psst psts pstu ptgs ptui pubs pubu pugs pugu puig puis puit puiu pupi pups pupu pusi puss pust put- puti puts putt putu s-ib s-ii sbbs sbig sbsi sbsp sbst sbus sggg sggs sgps sgss sgts sibi sibs sibu sigg sigi sigs siit sipi sipp sips sipt sisi siss sist sisu sit- siti sits sitt situ siui sius siut spgb spgt spib spig spip spis spit spps spsp spss spst sptb spts spug spui spus sput ssgs ssgt ssis ssit ssps sspt sssb sssi ssss sstb sstp ssts stbs stib stig stip stis stit stpp stps stsi stss stub stug stup stus stut sub- subb subg subi subs sug- sugg sugi suig suis suit sup- supp sups supt sus- susi susp suss sust susu suti sutu suus tbbs tbgs tbit tbsp tbst tbtp tgts tibi tibs tibu tigi tigs tiit tiiu tip- tipi tipp tips tipt tipu tisb tisi tiss tist titi titp tits titt titu tpbg tppp tptp tput tsgt tsig tsis tsps tspt tssg tssi tsst tsts tsui tsup ttbb ttss tttt tubb tubs tubu tugg tugs tugu tuig tuis tuit tuiu tupi tups tupu tusi tuss tust tuti tuts tutt tutu ubbi ubii ubis ubit uggs uggt ugis uguu uipi uist uits upis uppp uppu upsi upup usbs usgp usip usis uspp usps ussb usss usst ussu ustb usti ustp usts usui usus utis utti uttu utug uusi uuuu