-ing dddd ddss ddts dfds dfdt dfrf dfri dftg dftr dfts dgsi dgsn didi dids didu dif- diff difs digg digi digs diii diis din- ding dini dinn dins dint dinu dird dirr dirs dirt dis- disd disg disi diss dist diti dits ditt dius dnis dntt dnus dnut drgs drif drin drit drrs drug drui drus drut druu dsdr dsgn dsif dsng dsri dsrr dssi dssn dsst dstn dsts dtng dtss dudd duds dudu duff dufu dugs dugu duid duif duin duir duis duit dung dunn duns dunt durg duri durn durt duru dusi dust duts duur duut fdst fdti ffff ffii ffrr ffss fftf ffun fgts fidf fids fiff fifi fift figg figs fiii find fing fini finn fins fint firn firs fisd fisi fiss fist fisu fiti fits fitt fndd fndg fndn fndr fnrs fnuf frid frig frin fris frit frns frst frug frun fsfi fsgs fssf ftdi ftgd ftii ftrs ftsr fudd fudi fuff fufu fugi fugs fugu fuid fuig fuir fuit fund funf fung funs funt fur- furg furi furn furr furs furt fusd fusi fuss fust fusu futi futs futu gdfr gdnf gdrt ggfg gggg ggrn ggss gidd gidi gids giff gifs gift gifu gigg gigi gign gigs giis ging gini ginn gins ginu gird girg giri girn girr girs girt giru gisd giss gist gits giur gius gnin gnit gnrr gnti gnus grds grid grif grig grin gris grit grni grrr grrs grss gruf grug grui grun grur grus grut gsds gsif gsis gstr gsur gudi gudu guff gugg gugi gugu guid guin guis gund gung gunn guns gunt gurd gurg guri gurn gurr gurs gurt guru gusd guss gust guti guts gutt gutu guus idgf idid idig idin idir idis idrf idsf idss idts idun idus ifid ifis ifit ifni ifnr ifns ifrf ifri iftn iggs igis igni igns ignu igri igus iiii iiis iiit iirs iisd iisi iisr iist iisu iitr iitt ind- indi inds indu infi infs ings inid inig inis init inni innr inns innu inri inrs inss inst insu intd intg inti intn intr ints intu inui inun inus irds irfu irgs iri- irid irig irin iris irri irrs irsf irsg irtf irti irts irun irus isdn isds isin isis isit isnt isrg isri issf issi issr isss issu istd isti istr ists isus itgs itif itin itis itrf itri itrs itsf itsi itsu ittf itur iuds iugs iuiu iusd iuss iust n-ii ndfi ndnt ndrf ndri ndsf ndsi ndss ndut nfff nfrs nfsr nfsu ngfs ngns ngri ngsn ngtn ngts ngur nguu nidd nidi nids niff nift nigg nigs nigt niir niit niiu nind ning nini nins nirs nirt niru nisd nisi niss nist nisu nitf niti nitr nits niur nngn nnit nnnn nnss nntn nrds nrrd nrts nsdf nsdg nsds nsdt nsfs nsin nsis nsnr nsrd nssf nssr nsss nstd nsts nstu ntds ntfs ntis ntnd ntnu ntru ntsf ntss ntsu nttr ntui nudd nudi nuff nugs nuin nuit nung nunn nuns nunt nurd nuri nurn nurr nurs nurt nuru nusi nuss nust nusu nuts nutt nutu rdgs rfdi rfds rfgs rfid rgds rgit rgtr rgts ridd ridi rids riff rifs rift rifu rigg rigi rigs rigu riif riin riis rind rinf ring rinn riri rirs risd risi riss rist risu riti rits ritt ritu rius rndf rnds rngs rnin rnnt rntd rnut rrif rrrr rrun rsdd rsdg rsds rsid rsis rsnn rsnr rsts rstu rtdt rtgs rtnd rtns rtss rtts rudd rudi ruds ruff ruft rugg rugi rugs ruid ruif ruin ruis ruit rund runf rung runi runn runs runt rurd ruri rurs ruru rusi russ rust rusu ruti ruts rutt rutu ruud ruun s-ii sdds sdgs sdif sdrs sdsf sdss sdsu sfnt sfss sfsu sfts sggg sggs sgsd sgss sgts sidd sidi sidr sids siff sifr sift sifu sigd sigg sigi sign sigs siit sind sing sini sinn sins sint sinu sirf siri sirr sirs sirt siru sisd sisi siss sist sisu sit- sitd siti sitn sits sitt situ siui sius siut snfu snid snig snir snit snns snrs snsd sntr snug snur snus srfi sris srni srnn srsd srtr ssdd ssdf ssgs ssgt ssid ssin ssis ssit ssns ssrg ssri ssrs sssf sssi ssss sstd ssts stds stfn stfu stgr stid stif stig stir stis stit stnd stng stnn stnr stns strd stri strn strs stru stsf stsi stss sttd sttr stud stuf stug stun stur stus stut sudd sudi suds suf- suff sufi sufr sufs sufu sug- sugg sugi suid suig suin suir suis suit sun- sund sung suni sunn suns sunt sunu sur- surd surf surg suri surn surr surs surt suru sus- susd susi suss sust susu suti sutu suus tdff tdis tdri tdss tfin tfrs tfsd tfsi tfss tgif tgts tidd tids tiff tift tigi tigr tigs tiit tiiu tind ting tini tinn tins tint tinu tird tiri tirr tirs tiru tisi tiss tist titi tits titt titu tndd tndf tngs tnts tnut trfd trfr tri- trif trig trin tris trit trng trsd trsi trst trtr trud trug trun trus trut truu tsgt tsid tsig tsin tsis tssf tssg tssi tssr tsst tsts tsui tsun ttff ttfn ttss tttt tudi tudu tuff tufi tuft tufu tugg tugs tugu tuig tuin tuis tuit tuiu tund tung tuni tunn tuns tunu turd turf turg turi turn turr turs turt turu tusd tusi tuss tust tuti tuts tutt tutu uddi udds udid udig udin udir udsd udts udun uggs uggt ugis ugni ugri ugur uguu uint uirr uisd uist uits undi unds unfd ungu uni- unif unii unin unir unis unit unni unns unrf unrs uns- unsg unst unts unus unut urds urdu urff urfi urft urgi urgu urif urin uris uriu urni urns urri ursi urss ursu urts urun urur urus urut usdf usds usdt usfi usfs usif usin usis usnr usnu ussf ussr usss usst ussu usti usts usui usun usus utid utin utis utri utti uttu utug uuni uuri uusi uutf uuuu