stss sttc sttr stuc stug stur stus stut suar suas suat suc- succ sucr sucs sug- suga sugg sugo suor suos sur- sura surc surg suro surr surs surt suru sus- susa suso suss sust susu suta suto sutu suus taa- taag taar taas taat taca tacc taco tacs tact taga tagg tago tags tagu taoa taor taos taou tara tarc targ taro tarr tars tart taru tasa tasc tasr tass tast tasu tata tato tatr tats tatt tatu taua tauc taur taus taut tcca tccc tccu tcga tcos tctc tcts tgcc tgtc tgts toas toat toau toca toco toga togo togr togs togt tooa toor toos toot tora torc torg toro torr tors tort toru tosa tosc toso toss tost tosu tota totc toto totr tots tott toug tour tous tout traa trac trag trao tras trat trau trca trcc troa troc trog troo tros trot trou trra trst trtc trtr truc trug trus trut truu tsaa tsao tsar tsat tsau tsca tscc tscg tsgt tsos tsou tssa tssg tssr tsst tstc tsts ttss tttt tuao tuar tuas tuat tuca tucc tuco tuga tugg tugs tugu tuor tuos tura turc turg turo turr turs turt turu tusa tusc tuss tust tuta tuto tuts tutt tutu tuuo uaca uaoc uarc uars uart uaru uasa uata uatu uaua ucar ucas ucat ucca ucos ucrc ucsa ucsc ucst ucsu ucua ucut ugao ugar ugcc ugcg uggo uggs uggt ugos ugra ugro ugta ugur uguu uocc uor- urac urao uras urat urau urca urga urgu uro- uroa uroo urra ursa urso urss ursu urts urur urus urut us-a usaa usac usag usar usas usat usca uscc uscg usco uscs usga usgo usoc usog usos usra ussa ussc ussr usss usst ussu usta ustc usto usts usua usus utac utas utau utor utsa utsc utto uttu utug uuoc uuta uuuu