dddd ddry ddss dfds dfrf dfri didi dids didu didy dif- diff difs dify diii diis dird dirr dirs dis- disd disi diss disy dius diyi diyu drif drrs drui drus druu dry- dryf drys dsdr dsif dsri dsrr dssi dudd duds dudu duff dufu dufy duid duif duir duis duri duru dury dusi dusy duur duyr dydd dyf- dyfi dyr- dyrf dyri dyru dys- dysi dysr dyss dyur dyyr fdry ffff ffii ffrr ffss fidf fids fiff fifi fiii firs firy fisd fisi fiss fisu frid fris frys fsfi fssf fudd fudi fuff fufu fuid fuir fur- furi furr furs fury fusd fusi fuss fusu fuyu fyfi fyrd fyrs fyry idid idir idis idrf idsf idss idus iffy ifid ifis ifrf ifri iiii iiis iirs iisd iisi iisr iisu irds irfu iri- irid iris iriy irri irrs irsf irus isds isis isri issf issi issr isss issu issy isus isys iuds iuiu iusd iuss rfdi rfds rfid ridd ridi rids riff rifs rifu riif riis riri rirs risd risi riss risu rius riyf rrif rrrr rsdd rsds rsid rsis rudd rudi ruds rudy ruff ruid ruif ruis rurd ruri rurs ruru rusi russ rusu rusy ruud ruyd ruyi ruys rydy ryff ryif ryis rysy ryyf s-ii sdds sdif sdrs sdry sdsf sdss sdsu sfss sfsu sidd sidi sidr sids sidy siff sifr sifu sify sirf siri sirr sirs siru sisd sisi siss sisu sisy siui sius siyi siyu srfi sris srsd ssdd ssdf ssid ssis ssri ssrs sssf sssi ssss sudd sudi suds suf- suff sufi sufr sufs sufu suid suir suis sur- surd surf suri surr surs suru sury sus- susd susi suss susu susy suus suyi suyr suyu sydi syds syff syfy syis syrs syry syss uddi udds udid udir udsd uirr uisd urds urdu urdy urff urfi urif uris uriu urri urry ursi urss ursu ursy urur urus usdf usds usfi usfs usif usis ussf ussr usss ussu ussy usui usus uuri uusi uuuu uyir yidi yids yidu yiff yird yirr yiss yiud ysii yssu yudu yuff yufu yurd yuri yury yuyu yyff yyyy