a-a a-c aaa aac aah aan aao aay ac- aca acc ach acn aco acy aha ahc ahh ahn aho ahy an- ana anc anh ann ano any aoa aoc aoh aon aoo ay- aya ayc ayh ayn ayo c-- caa cac cah can cao cay cca ccc cch ccn cco ch- cha chc chh chn cho chy cn- cna cnc cnh cnn cno cny co- coa coc coh con coo coy cya cyc cyn cyo haa hac hah han hao hay hca hcc hch hcn hco hcy hha hhc hhh hhn hho hhy hna hnc hnh hnn hno hny hoa hoc hoh hon hoo hoy hy- hya hyc hyh hyn hyo hyy naa nac nah nan nao nay nca ncc nch ncn nco nha nhc nhh nhn nhy nna nnc nnh nnn nno no- noa noc noh non noo noy nya nyc nyn nyo nyy oaa oac oah oan oao oc- oca occ och ocn oco oha ohc ohh ohn oho on- ona onc onh onn ono ony oo- ooa ooc ooh oon ooo oya oyo yaa yac yah yan yao yay yca ycc ych yco ycy yha yhc yna ynn yny yoc yon yoo yoy yyc yyy