tpi tpo tpp tps tpt tpu tsa tsc tsd tsg tsi tso tsp tss tst tsu tsy tta ttc ttd ttg tti tto ttp tts ttt ttu tty tua tuc tud tug tui tuo tup tus tut tuu tuy tya tyc tyd tyg tyo typ tys tyt ua- uaa uac uad uag uai uao uap uas uat uau uay uca ucc ucd ucg uci uco ucp ucs uct ucu uda udc udd udg udi udo udp uds udt udu uga ugc ugg ugi ugo ugp ugs ugt ugu uia uic uid uig uii uio uip uis uit uiu uoa uoc uod uog uoo uop uos uot up- upa upc upd upg upi upo upp ups upt upu usa usc usd usg usi uso usp uss ust usu uta utc utd uti uto utp uts utt utu uty uua uuc uug uus uut uuu uyc uyi uyo uys uyu yaa yac yad yag yai yao yap yas yat yau yay yca ycc ycd yci yco ycp ycs ycu ycy yda ydg ydo yds ydt ydy yga ygc ygo yid yig yii yio yip yis yit yoc yod yog yoi yoo yop yos yot you yoy ypa ypd ypg ypo yps ypu ysa ysc ysg ysi yso ysp yss yst ysu ysy yta ytc ytd yto ytp yts ytt ytu yua yud yug yui yuo yup yus yut yuu yuy yyc yyg yys yyt yyu yyy