-ing dddd ddss dgsi dgsn didi dids didu digg digi digs diii diis din- ding dini dinn dins dinu dird dirr dirs dis- disd disg disi diss dius dnis dnus drgs drin drrs drug drui drus druu dsdr dsgn dsng dsri dsrr dssi dssn dudd duds dudu dugs dugu duid duin duir duis dung dunn duns durg duri durn duru dusi duur gggg ggrn ggss gidd gidi gids gigg gigi gign gigs giis ging gini ginn gins ginu gird girg giri girn girr girs giru gisd giss giur gius gnin gnrr gnus grds grid grig grin gris grni grrr grrs grss grug grui grun grur grus gsds gsis gsur gudi gudu gugg gugi gugu guid guin guis gund gung gunn guns gurd gurg guri gurn gurr gurs guru gusd guss guus idid idig idin idir idis idss idun idus iggs igis igni igns ignu igri igus iiii iiis iirs iisd iisi iisr iisu ind- indi inds indu ings inid inig inis inni innr inns innu inri inrs inss insu inui inun inus irds irgs iri- irid irig irin iris irri irrs irsg irun irus isdn isds isin isis isrg isri issi issr isss issu isus iuds iugs iuiu iusd iuss n-ii ndri ndsi ndss ngns ngri ngsn ngur nguu nidd nidi nids nigg nigs niir niiu nind ning nini nins nirs niru nisd nisi niss nisu niur nngn nnnn nnss nrds nrrd nsdg nsds nsin nsis nsnr nsrd nssr nsss nudd nudi nugs nuin nung nunn nuns nurd nuri nurn nurr nurs nuru nusi nuss nusu rdgs rgds ridd ridi rids rigg rigi rigs rigu riin riis rind ring rinn riri rirs risd risi riss risu rius rnds rngs rnin rrrr rrun rsdd rsdg rsds rsid rsis rsnn rsnr rudd rudi ruds rugg rugi rugs ruid ruin ruis rund rung runi runn runs rurd ruri rurs ruru rusi russ rusu ruud ruun s-ii sdds sdgs sdrs sdss sdsu sggg sggs sgsd sgss sidd sidi sidr sids sigd sigg sigi sign sigs sind sing sini sinn sins sinu siri sirr sirs siru sisd sisi siss sisu siui sius snid snig snir snns snrs snsd snug snur snus sris srni srnn srsd ssdd ssgs ssid ssin ssis ssns ssrg ssri ssrs sssi ssss sudd sudi suds sug- sugg sugi suid suig suin suir suis sun- sund sung suni sunn suns sunu sur- surd surg suri surn surr surs suru sus- susd susi suss susu suus uddi udds udid udig udin udir udsd udun uggs ugis ugni ugri ugur uguu uirr uisd undi unds ungu uni- unii unin unir unis unni unns unrs uns- unsg unus urds urdu urgi urgu 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