-ey a-a a-c aaa aac aae aan aao aay ac- aca acc ace acn aco acy aea aec aee aen aeo aey an- ana anc ane ann ano any aoa aoc aoe aon aoo ay- aya ayc aye ayn ayo c-- caa cac cae can cao cay cca ccc cce ccn cco ce- cea cec cee cen ceo cey cn- cna cnc cne cnn cno cny co- coa coc coe con coo coy cya cyc cye cyn cyo eaa eac eae ean eao ec- eca ecc ece ecn eco eea eec eee een eeo eey en- ena enc ene enn eno eny eo- eoa eoc eoe eon eoo eya eyc eye eyn eyo naa nac nae nan nao nay nca ncc nce ncn nco ne- nea nec nee nen neo ney nna nnc nne nnn nno no- noa noc noe non noo noy nya nyc nye nyn nyo nyy oaa oac oae oan oao oc- oca occ ocn oco oea oec oee oen oeo oey on- ona onc one onn ono ony oo- ooa ooc oon ooo oya oye oyo yaa yac yae yan yao yay yca ycc yce yco ycy yea yec yee yen yeo yey yna yne ynn yny yoc yoe yon yoo yoy yyc yye yyy