-ing dddd ddss ddts dfds dfdt dfrf dfri dftg dftr dfts dgsi dgsn didi dids dif- diff difs digg digi digs diii diis din- ding dini dinn dins dint dird dirr dirs dirt dis- disd disg disi diss dist diti dits ditt dnis dntt drgs drif drin drit drrs dsdr dsgn dsif dsng dsri dsrr dssi dssn dsst dstn dsts dtng dtss fdst fdti ffff ffii ffrr ffss fftf fgts fidf fids fiff fifi fift figg figs fiii find fing fini finn fins fint firn firs fisd fisi fiss fist fiti fits fitt fndd fndg fndn fndr fnrs frid frig frin fris frit frns frst fsfi fsgs fssf ftdi ftgd ftii ftrs ftsr gdfr gdnf gdrt ggfg gggg ggrn ggss gidd gidi gids giff gifs gift gigg gigi gign gigs giis ging gini ginn gins gird girg giri girn girr girs girt gisd giss gist gits gnin gnit gnrr gnti grds grid grif grig grin gris grit grni grrr grrs grss gsds gsif gsis gstr idgf idid idig idin idir idis idrf idsf idss idts ifid ifis ifit ifni ifnr ifns ifrf ifri iftn iggs igis igni igns igri iiii iiis iiit iirs iisd iisi iisr iist iitr iitt ind- indi inds infi infs ings inid inig inis init inni innr inns inri inrs inss inst intd intg inti intn intr ints irds irgs iri- irid irig irin iris irri irrs irsf irsg irtf irti irts isdn isds isin isis isit isnt isrg isri issf issi issr isss istd isti istr ists itgs itif itin itis itrf itri itrs itsf itsi ittf n-ii ndfi ndnt ndrf ndri ndsf ndsi ndss nfff nfrs nfsr ngfs ngns ngri ngsn ngtn ngts nidd nidi nids niff nift nigg nigs nigt niir niit nind ning nini nins nirs nirt nisd nisi niss nist nitf niti nitr nits nngn nnit nnnn nnss nntn nrds nrrd nrts nsdf nsdg nsds nsdt nsfs nsin nsis nsnr nsrd nssf nssr nsss nstd nsts ntds ntfs ntis ntnd ntsf ntss nttr rdgs rfdi rfds rfgs rfid rgds rgit rgtr rgts ridd ridi rids riff rifs rift rigg rigi rigs riif riin riis rind rinf ring rinn riri rirs risd risi riss rist riti rits ritt rndf rnds rngs rnin rnnt rntd rrif rrrr rsdd rsdg rsds rsid rsis rsnn rsnr rsts rtdt rtgs rtnd rtns rtss rtts s-ii sdds sdgs sdif sdrs sdsf sdss sfnt sfss sfts sggg sggs sgsd sgss sgts sidd sidi sidr sids siff sifr sift sigd sigg sigi sign sigs siit sind sing sini sinn sins sint sirf siri sirr sirs sirt sisd sisi siss sist sit- sitd siti sitn sits sitt snid snig snir snit snns snrs snsd sntr 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 stgr stid stif stig stir stis stit stnd stng stnn stnr stns strd stri strn strs stsf stsi stss sttd sttr tdff tdis tdri tdss tfin tfrs tfsd tfsi tfss tgif tgts tidd tids tiff tift tigi tigr tigs tiit tind ting tini tinn tins tint tird tiri tirr tirs tisi tiss tist titi tits titt tndd tndf tngs tnts trfd trfr tri- trif trig trin tris trit trng trsd trsi trst trtr tsgt tsid tsig tsin tsis tssf tssg tssi tssr tsst tsts ttff ttfn ttss tttt