a-a a-c a-t aaa aac aas aat aau aay ac- aca acc acs act acu acy as- asa asc ass ast asu asy at- ata atc ats att atu au- aua auc aus aut ay- aya ayc ays ayt ayu c-- caa cac cas cat cau cay cca ccc ccs cct ccu csa csc css cst csu csy cta ctc cts ctt ctu cty cua cuc cus cut cuu cuy cya cyc cys cyt saa sac sas sat sau say sca scc scs sct scu ss- ssa ssc sss sst ssu sta stc sts stt stu sty sua suc sus sut suu suy sy- sya syc sys syt syu taa tac tas tat tau tay tca tcc tcs tct tcu tsa tsc tss tst tsu tsy tta ttc tts ttt ttu tty tua tuc tus tut tuu tuy tya tyc tys tyt ua- uaa uac uas uat uau uay uca ucc ucs uct ucu usa usc uss ust usu uta utc uts utt utu uty uua uuc uus uut uuu uyc uys uyu yaa yac yas yat yau yay yca ycc ycs ycu ycy ysa ysc yss yst ysu ysy yta ytc yts ytt ytu yua yus yut yuu yuy yyc yys yyt yyu yyy