tsm tso tsr tss tst tsu tsy ttc tte ttg ttl ttm tto ttr tts ttt ttu tty tuc tue tug tul tum tuo tur tus tut tuu tuy tyc tye tyg tyl tym tyo tyr tys tyt ucc uce ucg ucl ucm uco ucr ucs uct ucu uec uee ueg uel uem uer ues uet uey ugc uge ugg ugl ugm ugo ugr ugs ugt ugu ulc ule ulg ull ulm ulo ulr uls ult ulu uly um- umc ume umg uml umm umo umr ums umt umu uoc uoe uog uol uom uoo uor uos uot ur- urc ure urg url urm uro urr urs urt uru ury usc use usg usl usm uso usr uss ust usu utc ute utl utm uto utr uts utt utu uty uuc uue uug uum uur uus uut uuu uyc uyo uys uyu ycc yce ycl yco ycs ycu ycy yec yee yeg yel yem yeo yer yes yet yey ygc ygl ygm ygo ylc yle ylg yll ylm ylr yls ylt yly ymc yme ymg yml ymm ymo yms ymt yoc yoe yog yol yom yoo yor yos yot you yoy yrc yre yrg yro yrs yrt yru ysc yse ysg ysl ysm yso ysr yss yst ysu ysy ytc yte ytl ytm yto ytr yts ytt ytu yue yug yul yum yuo yur yus yut yuu yuy yyc yye yyg yys yyt yyu yyy