tug tui tul tun tuo tur tut tuu tuy tyc tyd tyg tyl tyn tyo tyr tyt ucc ucd ucg uci ucl ucn uco ucr uct ucu udc udd udg udi udl udn udo udr udt udu ugc ugg ugi ugl ugn ugo ugr ugt ugu uic uid uig uii uil uin uio uir uit uiu ulc uld ulg uli ull uln ulo ulr ult ulu uly un- unc und ung uni unl unn uno unr unt unu uny uoc uod uog uol uon uoo uor uot ur- urc urd urg uri url urn uro urr urt uru ury utc utd uti utl utn uto utr utt utu uty uuc uug uun uur uut uuu uyc uyi uyo uyu ycc ycd yci ycl yco ycu ycy ydg ydl ydn ydo ydt ydy ygc ygl ygo yid yig yii yin yio yir yit ylc yld ylg yli yll ylr ylt yly ynd yng ynn ynu yny yoc yod yog yoi yol yon yoo yor yot you yoy yrc yrg yrn yro yrt yru ytc ytd ytl ytn yto ytr ytt ytu yud yug yui yul yun yuo yur yut yuu yuy yyc yyg yyt yyu yyy