tse tsg tsi tsl tsn tsp tss tst tsu tsy ttc tte ttg tti ttl ttn ttp tts ttt ttu tty tuc tue tug tui tul tun tup tus tut tuu tuy tyc tye tyg tyl tyn typ tys tyt ucc uce ucg uci ucl ucn ucp ucs uct ucu uec uee ueg uei uel uen uep ues uet uey ugc uge ugg ugi ugl ugn ugp ugs ugt ugu uic uie uig uii uil uin uip uis uit uiu ulc ule ulg uli ull uln ulp uls ult ulu uly un- unc une ung uni unl unn unp uns unt unu uny up- upc upe upg upi upn upp ups upt upu usc use usg usi usl usn usp uss ust usu utc ute uti utl utn utp uts utt utu uty uuc uue uug uun uus uut uuu uyc uyi uys uyu ycc yce yci ycl ycp ycs ycu ycy yec yee yeg yei yel yen yep yes yet yey ygc ygl yie yig yii yin yip yis yit ylc yle ylg yli yll yls ylt yly yne yng ynn ynp yns ynu yny ypg ypl yps ypu ysc yse ysg ysi ysl ysp yss yst ysu ysy ytc yte ytl ytn ytp yts ytt ytu yue yug yui yul yun yup yus yut yuu yuy yyc yye yyg yys yyt yyu yyy