dddd ddry ddss dnus drrs drus druu dry- drys dsdr dsrr dssn dudd duds dudu dunn duns duny durn duru dury dusy duur duyn duyr dydd dynu dyny dyr- dyru dys- dysr dyss dyun dyur dyyr ndry ndss nnnn nnss nrds nrrd nsds nsnr nsrd nssr nsss nudd nunn nuns nuny nurd nurn nurr nurs nuru nuss nusu nusy nuys nyny nyss rnds rrrr rrun rsdd rsds rsnn rsnr rudd ruds rudy rund runn runs runy rurd rurs ruru russ rusu rusy ruud ruun ruyd ruys rydy rynd rynn rysy ryun sdds sdrs sdry sdss sdsu snns snrs snsd snsy snur snus snys srnn srsd ssdd ssns ssrs ssss sudd suds sun- sund sunn suns sunu suny sur- surd surn surr surs suru sury sus- susd suss susu susy suus suyn suyr suyu syds syn- synd syns synu syny syrs syry syss syun udds udny udsd udun unds undy unns unrs uns- unus urds urdu urdy urns urry urss ursu ursy urun urur urus uryn usds usnr usnu ussr usss ussu ussy usun usus uuuu uuyn yrun yryn yssu yudu yund yuns yuny yurd yurn yury yuyu yyyy