-ing dddd ddss ddts dgsi dgsn didi dids 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 drin drit drrs dsdr dsgn dsng dsri dsrr dssi dssn dsst dstn dsts dtng dtss gdrt gggg ggrn ggss gidd gidi gids 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 grig grin gris grit grni grrr grrs grss gsds gsis gstr idid idig idin idir idis idss idts iggs igis igni igns igri iiii iiis iiit iirs iisd iisi iisr iist iitr iitt ind- indi inds 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 irsg irti irts isdn isds isin isis isit isnt isrg isri issi issr isss istd isti istr ists itgs itin itis itri itrs itsi n-ii ndnt ndri ndsi ndss ngns ngri ngsn ngtn ngts nidd nidi nids nigg nigs nigt niir niit nind ning nini nins nirs nirt nisd nisi niss nist niti nitr nits nngn nnit nnnn nnss nntn nrds nrrd nrts nsdg nsds nsdt nsin nsis nsnr nsrd nssr nsss nstd nsts ntds ntis ntnd ntss nttr rdgs rgds rgit rgtr rgts ridd ridi rids rigg rigi rigs riin riis rind ring rinn riri rirs risd risi riss rist riti rits ritt rnds rngs rnin rnnt rntd rrrr rsdd rsdg rsds rsid rsis rsnn rsnr rsts rtdt rtgs rtnd rtns rtss rtts s-ii sdds sdgs sdrs sdss sggg sggs sgsd sgss sgts sidd sidi sidr sids sigd sigg sigi sign sigs siit sind sing sini sinn sins sint siri sirr sirs sirt sisd sisi siss sist sit- sitd siti sitn sits sitt snid snig snir snit snns snrs snsd sntr sris srni srnn srsd srtr ssdd ssgs ssgt ssid ssin ssis ssit ssns ssrg ssri ssrs sssi ssss sstd ssts stds stgr stid stig stir stis stit stnd stng stnn stnr stns strd stri strn strs stsi stss sttd sttr tdis tdri tdss tgts tidd tids tigi tigr tigs tiit tind ting tini tinn tins tint tird tiri tirr tirs tisi tiss tist titi tits titt tndd tngs tnts tri- trig trin tris trit trng trsd trsi trst trtr tsgt tsid tsig tsin tsis tssg tssi tssr tsst tsts ttss tttt