sitn sits sitt situ siui sium sius siut smcc smgs smic smig smin smis smit smnc smrt smsc smsn smss smtc smti smtn smtu smug smur smus smut sncc snig snir snit snns snrs sntr snug snum snur snus srcc srct srim sris srmc srni srnn srtr sscc ssci sscs ssgs ssgt ssin ssis ssit ssmc ssns ssrc ssrg ssri ssrm ssrs sssc sssi sssm ssss sstc ssts stcc stcs stcu stgr stic stig stim stir stis stit stmc stms stmt stng stnn stnr stns strc stri strn strs stru stsi stsm stss sttc sttr stuc stug stum stun stur stus stut suc- succ suci sucr sucs sug- sugg sugi suig suin suir suis suit sum- sumi sums sumu sun- sung suni sunn suns sunt sunu sur- surc surg suri surn surr surs surt suru sus- susi suss sust susu suti sutu suum suus tccc tccu tcnn tctc tcts tgcc tgtc tgts ticc tics tigi tigm tigr tigs tiit tiiu timi timm timn tims timu tinc ting tini tinn tins tint tinu tiri tirr tirs tiru tisi tism tiss tist titc titi tits titt titu tium tmcc tmcm tmnt tmsc tmsi tmtt tncc tngs tnts tnut trcc tri- tric trig trim trin tris trit trmi trms trmu trng trsi trst trtc trtr truc trug trun trus trut truu tscc tscg tsgt tsig tsin tsis tsmc tssg tssi tssm tssr tsst tstc tstm tsts tsui tsum tsun ttcn ttim ttms ttss tttt tucc tugg tugs tugu tuig tuim tuin tuis tuit tuiu tumi tums tumu tunc tung tuni tunn tuns tunu turc turg turi turm turn turr turs turt turu tusc tusi tusm tuss tust tuti tuts tutt tutu tuum ucci ucin ucmc ucrc ucsc ucsm ucst ucsu ucut ugcc ugcg uggs uggt ugis ugni ugri ugur uguu uims uint uirr uist uits umit ummg umms umri umsu umts umus umut uncc uncg unci uncs unct ungu uni- unic unii unin unir unis unit unmc unmr unni unns unrs uns- unsc unsg unst unts unum unus unut urci urgi urgu uric urim urin uris uriu urmi urni urns urri ursi urss ursu urts urum urun urur urus urut uscc uscg uscm uscs usim usin usis usmc usmm usms usnc usnr usnu ussc ussr usss usst ussu ustc usti ustm usts usui usun usus utin utis utri utsc utti uttu utug uuni uuri uusi uuuu