bbbb bbbs bbhs bbrg bggs bghs bght bgst bhhs bhir bhit bhrt bhur bhut bhuu bibb bibi bibs bigb bigg bigs bigt bigu bihi bihs bihu biis birb birg biri birr birs birt biru bis- bish biss bist bisu bith bits bitt bitu brhs brig brih bris brit brrr brrs brsb brsr brst brug bruh brus brut bsgs bshs bsts bths btrt btss bttb btus bubb bubi bubs bubu bugg bugh bugi bugs buhi buhr buhs buir buis buit buiu bur- burb burg burh buri burr burs burt buru bush busi buss bust busu but- buti buts butt buus gbbs gbhs ggbt gggg gghg ggss ghhs ghib ghit ghug gibb gibh gibs gigg gigi gigs gihs giis girg giri girr girs girt giru gish giss gist gith gits giur gius grbr grhs grib grig gris grit grrr grrs grss grub grug grui grur grus grut gshs gsis gstr gsur gtbr gubb gubi gubs gubu gugb gugg gugh gugi gugu guhr guib guis gurb gurg gurh guri gurr gurs gurt guru gusb gush guss gust guth guti guts gutt gutu guus h-ii hbbs hbhs hbit hbrs hbss hbtu hghs hgst hgts hhgg hhhh hhhs hhus hibi hibt hibu high higi higs higt hihi hiht hiis hiit hiiu hiri hirs hirt hiru hisb hish hiss hist hiti hits hitt hrhs hrib hrit hrtb hshs hsts hsur htgs hths httr hubb hubi hubs hugg hugh hugi hugs huhi huhs huhu huib huir huis huit huri hurr hurs hurt huru hush husi huss hust huth huti huts hutt hutu huub huus ibis ibri ibss ibtb ibts ibus iggs ight igis igri igus ihis ihit ihss ihub ihug iiht iiii iiis iiit iirs iisi iisr iist iisu iitr iitt irgs irhs iri- irig iris irri irrs irsg irti irts irus isbt ishi ishr ishs isis isit isrg isri issh issi issr isss issu isth isti istr ists isuh isus itbs itgs iths itis itri itrs itsi itsu itur iugs iuiu iuss iust rbbb rbbr rbbs rbgh rbhs rbis rbss rbst rgbi rghs rgit rgtr rgts rhbg rhhs rhib rhug rhus rib- ribs ribu rigg righ rigi rigs rigu rihs riht riis riri rirs rish risi riss rist risu rith riti rits ritt ritu rius rrhs rrrr rsbi rsgb rshs rsis rsts rstu rtgs rths rtss rtts rubb rubi rubs rubu rugg rugh rugi rugs ruhh ruhi ruhr ruhs ruis ruit ruri rurs ruru rush rusi russ rust rusu ruth ruti ruts rutt rutu s-ib s-ii sbbs sbhs sbig sbsi sbst sbus sggg sggs sghs sgsh sgss sgts shbs shbt shgr shhh shhs shib shig shih shii shir shis shit shiu shri shrs shtg shts shub shug shui shur shus shut shuu sibi sibs sibu sigg sigh sigi sigs sihi sihr sihs siht sihu siit siri sirr sirs sirt siru sish sisi siss sist sisu sit- sith siti sits sitt situ siui sius siut srgb srhs srib sris srtr srub ssbr ssgs ssgt sshs ssis ssit ssrg ssri ssrs sssb sssh sssi ssss sstb ssth ssts stbs stgr sthg sths stib stig stih stir stis stit stri strs stru stsi stss sttr stub stug stur stus stut sub- subb subg subh subi subs sug- sugg sugh sugi suhb suhi suhr suig suir suis suit sur- surg suri surr surs surt suru sus- susi suss sust susu suti sutu suus tbbs tbgs tbhs tbit tbrb tbst tghs tgts thbs thi- thig thir this thri thru thsr thss thtb thtr thts thug thur thus tibi tibs tibu tigh tigi tigr tigs tiht tihu tiit tiiu tirb tiri tirr tirs tiru tisb tish tisi tiss tist tith titi tits titt titu trhs tri- trib trig tris trit trsi trst trtr trub trug trus trut truu tsgt tshb tshi tshs tsig tsis tssg tssi tssr tsst tsts tsui ttbb ttss tttt tubb tubr tubs tubu tugg tugh tugs tugu tuhs tuht tuhu tuig tuis tuit tuiu turb turg turi turr turs turt turu tush tusi tuss tust tuti tuts tutt tutu ubbi ubii ubir ubis ubit uggs uggt ughi ughs ugis ugri ugur uguu uhrs uhss uhti uhuh uirr uist uits urbi urbs urgh urgi urgu urib uris uriu urrh urri ursi urss ursu urth urts urur urus urut usbr usbs ushi ushr ushs ushu usis ussb ussr usss usst ussu ustb usti usts usui usus utis utri utti uttu utug uuri uusi uuuu