-ing dddd ddss ddts dgsi dgsn didi dids digg digi digs diii diis din- ding dini dinn dins dint dis- disd disg disi diss dist diti dits ditt dnis dntt dsgn dsng dssi dssn dsst dstn dsts dtng dtss gggg ggss gidd gidi gids gigg gigi gign gigs giis ging gini ginn gins gisd giss gist gits gnin gnit gnti gsds gsis idid idig idin idis idss idts iggs igis igni igns iiii iiis iiit iisd iisi iist iitt ind- indi inds ings inid inig inis init inni inns inss inst intd intg inti intn ints isdn isds isin isis isit isnt issi isss istd isti ists itgs itin itis itsi n-ii ndnt ndsi ndss ngns ngsn ngtn ngts nidd nidi nids nigg nigs nigt niit nind ning nini nins nisd nisi niss nist niti nits nngn nnit nnnn nnss nntn nsdg nsds nsdt nsin nsis nsss nstd nsts ntds ntis ntnd ntss s-ii sdds sdgs sdss sggg sggs sgsd sgss sgts sidd sidi sids sigd sigg sigi sign sigs siit sind sing sini sinn sins sint sisd sisi siss sist sit- sitd siti sitn sits sitt snid snig snit snns snsd ssdd ssgs ssgt ssid ssin ssis ssit ssns sssi ssss sstd ssts stds stid stig stis stit stnd stng stnn stns stsi stss sttd tdis tdss tgts tidd tids tigi tigs tiit tind ting tini tinn tins tint tisi tiss tist titi tits titt tndd tngs tnts tsgt tsid tsig tsin tsis tssg tssi tsst tsts ttss tttt