tuc tue tug tui tul tun tuo tur tut tuu tuy tyc tye tyg tyl tyn tyo tyr tyt ucc uce ucg uci ucl ucn uco ucr uct ucu uec uee ueg uei uel uen uer uet uey ugc uge ugg ugi ugl ugn ugo ugr ugt ugu uic uie uig uii uil uin uio uir uit uiu ulc ule ulg uli ull uln ulo ulr ult ulu uly un- unc une ung uni unl unn uno unr unt unu uny uoc uoe uog uol uon uoo uor uot ur- urc ure urg uri url urn uro urr urt uru ury utc ute uti utl utn uto utr utt utu uty uuc uue uug uun uur uut uuu uyc uyi uyo uyu ycc yce yci ycl yco ycu ycy yec yee yeg yei yel yen yeo yer yet yey ygc ygl ygo yie yig yii yin yio yir yit ylc yle ylg yli yll ylr ylt yly yne yng ynn ynu yny yoc yoe yog yoi yol yon yoo yor yot you yoy yrc yre yrg yrn yro yrt yru ytc yte ytl ytn yto ytr ytt ytu yue yug yui yul yun yuo yur yut yuu yuy yyc yye yyg yyt yyu yyy