bbbb bbbs bblb bbls bbrg bggs bgst bibb bibi bibl bibs bigb bigg bigs bigt bigu biis bili bill bils bilt bilu birb birg biri birl birr birs birt biru bis- bisl biss bist bisu bits bitt bitu blbt blir blis blit blls blrg blss blst blts blub blur blus blut brig bril bris brit brls brrr brrs brsb brsr brst brug brus brut bsgs bsts btrt btss bttb btus bubb bubi bubs bubu bugg bugi bugs buir buis buit buiu bulb bulg buli bull buls bult bulu bur- burb burg buri burl burr burs burt buru busi buss bust busu but- buti buts butt buus gbbs ggbt gggg ggss gibb gibs gigg gigi gigs giis gilg gili gill gils gilt girg giri girl girr girs girt giru giss gist gits giur gius gli- glib glis glit glrb glub glug glui glur glut grbr grib grig gril gris grit grrl grrr grrs grss grub grug grui grur grus grut gsis gsli gstr gsur gtbr gubb gubi gubs gubu gugb gugg gugi gugu guib guil guis gulb guli gull guls gult gulu gurb gurg guri gurl gurr gurs gurt guru gusb guss gust guti guts gutt gutu guus ibis ibri ibss ibtb ibtl ibts ibus iggs igil igis igli iglu igri igus iiii iiis iiit iirs iisi iisr iist iisu iitr iitt ilir ilis ilit ill- illi ills illt ilts ilus ilut irgs iri- irig iril iris irlb irri irrs irsg irti irts irul irus isbl isbt isil isis isit isls isrg isri issi issr isss issu isti istr ists isus itbs itgs itil itis itll itri itrs itsi itsu itur iugs iuiu iuss iust lbgt lblr lbrs lbrt lbug lgbt lgbu lgts libr libs libu ligg ligi liig liii liir liis lilb lilg lili lill lils lilt lilu lirg liri lirl lirr lirs lirt liru lisi liss list lisu litb liti litl litr lits litt litu lius liut llbs llll lrgb lrrr lrst lrts ls-r lsbu lssr lsts ltbl ltgs ltib ltrs ltsi ltsr lttr lubs lugg lugi lugs lugu luis luit luli lull lulu lurg luri lurs lurt lusi luss lust luti luts rbbb rbbr rbbs rbis rbsl rbss rbst rgbi rgit rgtr rgts rib- ribs ribu rigg rigi rigs rigu riis rill rilu riri rirs risi riss rist risu riti ritl rits ritt ritu rius rlls rlug rrrr rsbi rsgb rsis rssl rsts rstu rtgs rtls rtlt rtss rtts rubb rubi rubs rubu rugg rugi rugs ruis ruit rull ruri rurs ruru rusi russ rust rusu ruti rutl ruts rutt rutu s-ib s-ii sbbs sbig sbsi sbst sbus sggg sggs sglr sgls sgss sgts sibi sibs sibu sigg sigi sigs siit sil- sili sill sils silt silu siri sirr sirs sirt siru sisi siss sist sisu sit- siti sits sitt situ siui sius siut sl-i slib slig slir slit slrs slst slsu slts slub slug slur slut srgb srib sris srtr srub ssbr ssgs ssgt ssis ssit sslt ssrg ssri ssrl ssrs sssb sssi ssss sstb sstl ssts stbs stgr stib stig stil stir stis stit stlg stlt stri strs stru stsi stss sttr stub stug stul stur stus stut sub- subb subg subi subl subs sug- sugg sugi suig suir suis suit sul- suli sull sult sulu sur- surg suri surr surs surt suru sus- susi suss sust susu suti sutu suus tbbs tbgs tbil tbit tbrb tbst tgts tibi tibs tibu tigi tigr tigs tiit tiiu till tilr tils tilt tirb tiri tirl tirr tirs tiru tisb tisi tiss tist titi tits titt titu tlli tlrs tri- trib trig tril tris trit trsi trst trtr trub trug trus trut truu tsgt tsig tsis tssg tssi tssr tsst tsts tsui ttbb ttss tttt ttul tubb tubr tubs tubu tugg tugs tugu tuig tuil tuis tuit tuiu tuli tull tulu turb turg turi turr turs turt turu tusi tuss tust tuti tutl tuts tutt tutu ubbi ubii ubir ubis ubit ubli ubls uggs uggt ugis ugli ugri ugur uguu uirr uist uits ulli ullr ulti ults ultt ulul ulus urbi urbs urgi urgu urib uris uriu urls urri ursi urss ursu urts urur urus urut usbl usbr usbs usis uslu ussb ussr usss usst ussu ustb usti usts usui usul usus util utis utri utsl utti uttu utug uulu uuri uusi uuuu