dddd ddry ddss ddts didi dids didu didy diii diis dird dirr dirs dirt dis- disd disi diss dist disy diti dits ditt dius diyi diyu drit drrs drui drus drut druu dry- drys dsdr dsri dsrr dssi dsst dsts dtss dudd duds dudu duid duir duis duit duri durt duru dury dusi dust dusy duts duty duur duut duyr dydd dyit dyr- dyri dyrt dyru dys- dysi dysr dyss dyst dyt- dyty dyur dyyr idid idir idis idss idts idus iiii iiis iiit iirs iisd iisi iisr iist iisu iitr iitt irds iri- irid iris iriy irri irrs irti irts irus isds isis isit isri issi issr isss issu issy istd isti istr ists isty isus isys itis itri itrs itry itsi itsu itsy itty itur iuds iuiu iusd iuss iust iuty ridd ridi rids riis riri rirs risd risi riss rist risu riti rits ritt ritu rius rrrr rsdd rsds rsid rsis rsts rstu rtdt rtss rtts rudd rudi ruds rudy ruid ruis ruit rurd ruri rurs ruru rusi russ rust rusu rusy ruti ruts rutt rutu ruty ruud ruyd ruyi ruys rydy ryis rysy rytt ryyt s-ii sdds sdrs sdry sdss sdsu sidd sidi sidr sids sidy siit siri sirr sirs sirt siru sisd sisi siss sist sisu sisy sit- sitd siti sits sitt situ sity siui sius siut siyi siyu sris srsd srtr ssdd ssid ssis ssit ssri ssrs sssi ssss sstd ssts stds stid stir stis stit strd stri strs stru stry stsi stss sttd sttr stud stur stus stut stuy styd styr stys sudd sudi suds suid suir suis suit sur- surd suri surr surs surt suru sury sus- susd susi suss sust susu susy suti sutu suty suus suyi suyr suyu sydi syds syis syrs syrt syry syss syst sytt tdis tdri tdss tidd tids tidy tiit tiiu tird tiri tirr tirs tiru tiry tisi tiss tist titi tits titt titu tiyi tri- tris trit trsd trsi trst trtr trud trus trut truu try- trys tsid tsis tssi tssr tsst tsts tsui tsys ttss tttt ttyd ttys tudi tudu tuis tuit tuiu turd turi turr turs turt turu tury tusd tusi tuss tust tuti tuts tutt tutu tuty tuys tydd tydi tydy tyir tyr- tyrr tyss tyst tytd tyti tytt tyty tyus uddi udds udid udir udsd udts uirr uisd uist uits urds urdu urdy uris uriu urri urry ursi urss ursu ursy urts urur urus urut usds usdt usis ussr usss usst ussu ussy usti usts usui usus utid utis utri utti uttu uuri uusi uuuu uyir uyts ydyt yidi yids yidu yird yirr yiss yist yiti yiud ysii yssu yudu yuit yurd yuri yurt yury yust yutu yuty yuyu yyyy