bbbb bbbs bbdd bbrg bd-r bdii bdsd bggs bgst bibb bibi bibs bidi bidr bids bigb bigd bigg bigs bigt biis birb bird birg biri birr birs birt bis- bisd biss bist bitd bits bitt brds brdt brid brig bris brit brrr brrs brsb brsr brst bsbd bsgs bsrd bssd bsts btdt btrt btss bttb dbit dbrs dbss dbtt dddd ddss ddts dgsb dgsi dibb dibs didi dids digg digi digs diii diis dird dirr dirs dirt dis- disd disg disi diss dist diti dits ditt drgs drib drit drrs dsdr dsri dsrr dssi dsst dsts dtss gbbs gddb gdrt ggbt gggg ggss gibb gibs gidd gidi gids gigg gigi gigs giis gird girg giri girr girs girt gisd giss gist gits grbr grds grib grid grig gris grit grrr grrs grss gsds gsis gstr gtbr ibid ibis ibrd ibri ibss ibtb ibts idid idig idir idis idss idts iggs igis igri iiii iiis iiit iirs iisd iisi iisr iist iitr iitt irds irgs iri- irid irig iris irri irrs irsg irti irts isbd isbt isdb isds isis isit isrg isri issi issr isss istd isti istr ists itbs itgs itis itri itrs itsi rbbb rbbr rbbs rbds rbis rbsd rbss rbst rdgs rgbi rgds rgit rgtr rgts rib- ribs ridd ridi rids rigg rigi rigs riis riri rirs risd risi riss rist riti rits ritt rrrr rsbi rsdd rsdg rsds rsgb rsid rsis rsts rtdt rtgs rtss rtts s-ib s-ii sbbs sbds sbig sbsd sbsi sbst sdds sdgs sdib sdrs sdss sggg sggs sgsd sgss sgts sibi sibs sidd sidi sidr sids sigd sigg sigi sigs siit siri sirr sirs sirt sisd sisi siss sist sit- sitd siti sits sitt srgb srib sris srsd srtr ssbr ssdd ssgs ssgt ssid ssis ssit ssrg ssri ssrs sssb sssi ssss sstb sstd ssts stbd stbs stds stgr stib stid stig stir stis stit strd stri strs stsi stss sttd sttr tbbs tbgs tbit tbrb tbst tddb tdis tdri tdss tgts tibi tibs tidd tids tigi tigr tigs tiit tirb tird tiri tirr tirs tisb tisi tiss tist titi tits titt tri- trib trig tris trit trsd trsi trst trtr tsbd tsdb tsgt tsid tsig tsis tssg tssi tssr tsst tsts ttbb ttss tttt