tnn tnr tns tnt tra trc tre trg tri trn trr trs trt tru try tsa tsc tse tsg tsi tsn tsr tss tst tsu tsy tta ttc tte ttg tti ttn ttr tts ttt ttu tty tua tuc tue tug tui tun tur tus tut tuu tuy tya tyc tye tyg tyn tyr tys tyt ua- uaa uac uae uag uai uan uar uas uat uau uay uca ucc uce ucg uci ucn ucr ucs uct ucu uea uec uee ueg uei uen uer ues uet uey uga ugc uge ugg ugi ugn ugr ugs ugt ugu uia uic uie uig uii uin uir uis uit uiu un- una unc une ung uni unn unr uns unt unu uny ur- ura urc ure urg uri urn urr urs urt uru ury usa usc use usg usi usn usr uss ust usu uta utc ute uti utn utr uts utt utu uty uua uuc uue uug uun uur uus uut uuu uyc uyi uys uyu yaa yac yae yag yai yan yar yas yat yau yay yca ycc yce yci ycs ycu ycy yea yec yee yeg yei yen yer yes yet yey yga ygc yie yig yii yin yir yis yit yna yne yng ynn yns ynu yny yra yrc yre yrg yrn yrs yrt yru ysa ysc yse ysg ysi ysr yss yst ysu ysy yta ytc yte ytn ytr yts ytt ytu yua yue yug yui yun yur yus yut yuu yuy yyc yye yyg yys yyt yyu yyy