dddd ddry ddss didi dids didu didy diii diis dird dirr dirs dis- disd disi diss disy dius diyi diyu drrs drui drus druu dry- drys dsdr dsri dsrr dssi dudd duds dudu duid duir duis duri duru dury dusi dusy duur duyr dydd dyr- dyri dyru dys- dysi dysr dyss dyur dyyr idid idir idis idss idus iiii iiis iirs iisd iisi iisr iisu irds iri- irid iris iriy irri irrs irus isds isis isri issi issr isss issu issy isus isys iuds iuiu iusd iuss ridd ridi rids riis riri rirs risd risi riss risu rius rrrr rsdd rsds rsid rsis rudd rudi ruds rudy ruid ruis rurd ruri rurs ruru rusi russ rusu rusy ruud ruyd ruyi ruys rydy ryis rysy s-ii sdds sdrs sdry sdss sdsu sidd sidi sidr sids sidy siri sirr sirs siru sisd sisi siss sisu sisy siui sius siyi siyu sris srsd ssdd ssid ssis ssri ssrs sssi ssss sudd sudi suds suid suir suis sur- surd suri surr surs suru sury sus- susd susi suss susu susy suus suyi suyr suyu sydi syds syis syrs syry syss uddi udds udid udir udsd uirr uisd urds urdu urdy uris uriu urri urry ursi urss ursu ursy urur urus usds usis ussr usss ussu ussy usui usus uuri uusi uuuu uyir yidi yids yidu yird yirr yiss yiud ysii yssu yudu yurd yuri yury yuyu yyyy