a-a a-c aaa aac aas aau aay ac- aca acc acs acu acy as- asa asc ass asu asy au- aua auc aus ay- aya ayc ays ayu c-- caa cac cas cau cay cca ccc ccs ccu csa csc css csu csy cua cuc cus cuu cuy cya cyc cys saa sac sas sau say sca scc scs scu ss- ssa ssc sss ssu sua suc sus suu suy sy- sya syc sys syu ua- uaa uac uas uau uay uca ucc ucs ucu usa usc uss usu uua uuc uus uuu uyc uys uyu yaa yac yas yau yay yca ycc ycs ycu ycy ysa ysc yss ysu ysy yua yus yuu yuy yyc yys yyu yyy