trs trt tru try tsa tsc tsg tsm tsn tso tsr tss tst tsu tsy tta ttc ttg ttm ttn tto ttr tts ttt ttu tty tua tuc tug tum tun tuo tur tus tut tuu tuy tya tyc tyg tym tyn tyo tyr tys tyt ua- uaa uac uag uam uan uao uar uas uat uau uay uca ucc ucg ucm ucn uco ucr ucs uct ucu uga ugc ugg ugm ugn ugo ugr ugs ugt ugu um- uma umc umg umm umn umo umr ums umt umu un- una unc ung unm unn uno unr uns unt unu uny uoa uoc uog uom uon uoo uor uos uot ur- ura urc urg urm urn uro urr urs urt uru ury usa usc usg usm usn uso usr uss ust usu uta utc utm utn uto utr uts utt utu uty uua uuc uug uum uun uur uus uut uuu uyc uyo uys uyu yaa yac yag yam yan yao yar yas yat yau yay yca ycc yco ycs ycu ycy yga ygc ygm ygo yma ymc ymg ymm ymo yms ymt yna yng ynn yns ynu yny yoc yog yom yon yoo yor yos yot you yoy yra yrc yrg yrn yro yrs yrt yru ysa ysc ysg ysm yso ysr yss yst ysu ysy yta ytc ytm ytn yto ytr yts ytt ytu yua yug yum yun yuo yur yus yut yuu yuy yyc yyg yys yyt yyu yyy