dddd ddss didi dids didu diii diis diiv din- dini dinn dins dinu dird dirr dirs dis- disd disi diss dius divd divi divs dnis dnus drin drrs drui drus druu druv drvn dsdr dsri dsrr dssi dssn dsvd dudd duds dudu duid duin duir duis dunn duns duri durn duru dusi duur dvdr dvds dvi- dvii dvin dvir dvrs dvsn dvsr idid idin idir idis idss idun idus idvd iiii iiis iirs iisd iisi iisr iisu ind- indi inds indu inid inis inni innr inns innu inri inrs inss insu inui inun inus invs irds iri- irid irin iris irri irrs irun irus irvs isdn isds isin isis isri issi issr isss issu isus iuds iuiu iusd iuss ivdr ivin ivrs n-ii ndri ndsi ndss ndsv nidd nidi nids niir niiu nind nini nins nirs niru nirv nisd nisi niss nisu niur nivr nnnn nnss nrds nrrd nrsv nsds nsin nsis nsnr nsrd nssr nsss nudd nudi nuin nunn nuns nurd nuri nurn nurr nurs nuru nurv nusi nuss nusu nvir nvis nvss rdvs ridd ridi rids riin riis rind rinn riri rirs risd risi riss risu rius rivs rnds rnin rrrr rrun rsdd rsds rsid rsis rsnn rsnr rudd rudi ruds ruid ruin ruis rund runi runn runs rurd ruri rurs ruru rusi russ rusu ruud ruun ruvi ruvu s-ii s-iv sdds sdrs sdss sdsu sidd sidi sidr sids sind sini sinn sins sinu siri sirr sirs siru sisd sisi siss sisu siui sius sivi snid snir snns snrs snsd snur snus snvi sris srni srnn srsd srvn ssdd ssid ssin ssis ssns ssri ssrs sssi ssss sudd sudi suds suid suin suir suis sun- sund suni sunn suns sunu sur- surd suri surn surr surs suru surv sus- susd susi suss susu suus suvi suvs svir svns uddi udds udid udin udir udsd udun uirr uisd undi unds uni- unii unin unir unis univ unni unns unrs uns- unus urds urdu urin uris uriu urni urns urri ursi urss ursu urun urur urus usds usin usis usnr usnu ussr usss ussu usui usun usus uuni uuri uusi uuuu uvid uvis uvrd uvri uvvu vdsi vidi vids viii vind vini vins vinu viri virr viru visd visi visn viss visu vivi vnir vrdi vrin vris vrnn vrsi vsun vudi vudu vuir vvvv