a-a a-c aaa aac aao aau aay ac- aca acc aco acu acy aoa aoc aoo aou au- aua auc auo ay- aya ayc ayo ayu c-- caa cac cao cau cay cca ccc cco ccu co- coa coc coo cou coy cua cuc cuo cuu cuy cya cyc cyo oaa oac oao oau oc- oca occ oco ocu oo- ooa ooc ooo ou- oua ouc ouo oya oyo ua- uaa uac uao uau uay uca ucc uco ucu uoa uoc uoo uua uuc uuu uyc uyo uyu yaa yac yao yau yay yca ycc yco ycu ycy yoc yoo you yoy yua yuo yuu yuy yyc yyu yyy