dddd ddss ddts dgsi didi dids didu digg digi digs diii diis dird dirr dirs dirt dis- disd disg disi diss dist diti dits ditt dius drgs drit drrs drug drui drus drut druu dsdr dsri dsrr dssi dsst dsts dtss dudd duds dudu dugs dugu duid duir duis duit durg duri durt duru dusi dust duts duur duut gdrt gggg ggss gidd gidi gids gigg gigi gigs giis gird girg giri girr girs girt giru gisd giss gist gits giur gius grds grid grig gris grit grrr grrs grss grug grui grur grus grut gsds gsis gstr gsur gudi gudu gugg gugi gugu guid guis gurd gurg guri gurr gurs gurt guru gusd guss gust guti guts gutt gutu guus idid idig idir idis idss idts idus iggs igis igri igus iiii iiis iiit iirs iisd iisi iisr iist iisu iitr iitt irds irgs iri- irid irig iris irri irrs irsg irti irts irus isds isis isit isrg isri issi issr isss issu istd isti istr ists isus itgs itis itri itrs itsi itsu itur iuds iugs iuiu iusd iuss iust rdgs rgds rgit rgtr rgts ridd ridi rids rigg rigi rigs rigu riis riri rirs risd risi riss rist risu riti rits ritt ritu rius rrrr rsdd rsdg rsds rsid rsis rsts rstu rtdt rtgs rtss rtts rudd rudi ruds rugg rugi rugs ruid ruis ruit rurd ruri rurs ruru rusi russ rust rusu ruti ruts rutt rutu ruud s-ii sdds sdgs sdrs sdss sdsu sggg sggs sgsd sgss sgts sidd sidi sidr sids sigd sigg sigi sigs siit siri sirr sirs sirt siru sisd sisi siss sist sisu sit- sitd siti sits sitt situ siui sius siut sris srsd srtr ssdd ssgs ssgt ssid ssis ssit ssrg ssri ssrs sssi ssss sstd ssts stds stgr stid stig stir stis stit strd stri strs stru stsi stss sttd sttr stud stug stur stus stut sudd sudi suds sug- sugg sugi suid suig suir suis suit sur- surd surg suri surr surs surt suru sus- susd susi suss sust susu suti sutu suus tdis tdri tdss tgts tidd tids tigi tigr tigs tiit tiiu tird tiri tirr tirs tiru tisi tiss tist titi tits titt titu tri- trig tris trit trsd trsi trst trtr trud trug trus trut truu tsgt tsid tsig tsis tssg tssi tssr tsst tsts tsui ttss tttt tudi tudu tugg tugs tugu tuig tuis tuit tuiu turd turg turi turr turs turt turu tusd tusi tuss tust tuti tuts tutt tutu uddi udds udid udig udir udsd udts uggs uggt ugis ugri ugur uguu uirr uisd uist uits urds urdu urgi urgu uris uriu urri ursi urss ursu urts urur urus urut usds usdt usis ussr usss usst ussu usti usts usui usus utid utis utri utti uttu utug uuri uusi uuuu